reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1 | /* |
| 2 | Copyright 2010 Google Inc. |
| 3 | |
| 4 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | you may not use this file except in compliance with the License. |
| 6 | You may obtain a copy of the License at |
| 7 | |
| 8 | http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | |
| 10 | Unless required by applicable law or agreed to in writing, software |
| 11 | distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | See the License for the specific language governing permissions and |
| 14 | limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "GrGpuGL.h" |
| 18 | #include "GrMemory.h" |
| 19 | #include <stdio.h> |
bsalomon@google.com | 2fbc7fa | 2011-01-05 16:34:41 +0000 | [diff] [blame] | 20 | #if GR_WIN32_BUILD |
| 21 | // need to get wglGetProcAddress |
| 22 | #undef WIN32_LEAN_AND_MEAN |
| 23 | #define WIN32_LEAN_AND_MEAN 1 |
| 24 | #include <windows.h> |
| 25 | #undef WIN32_LEAN_AND_MEAN |
| 26 | #endif |
| 27 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 28 | |
| 29 | static const GLuint GR_MAX_GLUINT = ~0; |
| 30 | static const GLint GR_INVAL_GLINT = ~0; |
| 31 | |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 32 | // we use a spare texture unit to avoid |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 33 | // mucking with the state of any of the stages. |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 34 | static const int SPARE_TEX_UNIT = GrGpuGL::kNumStages; |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 35 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 36 | #define SKIP_CACHE_CHECK true |
| 37 | |
| 38 | static const GLenum gXfermodeCoeff2Blend[] = { |
| 39 | GL_ZERO, |
| 40 | GL_ONE, |
| 41 | GL_SRC_COLOR, |
| 42 | GL_ONE_MINUS_SRC_COLOR, |
| 43 | GL_DST_COLOR, |
| 44 | GL_ONE_MINUS_DST_COLOR, |
| 45 | GL_SRC_ALPHA, |
| 46 | GL_ONE_MINUS_SRC_ALPHA, |
| 47 | GL_DST_ALPHA, |
| 48 | GL_ONE_MINUS_DST_ALPHA, |
| 49 | }; |
| 50 | |
| 51 | bool has_gl_extension(const char* ext) { |
| 52 | const char* glstr = (const char*) glGetString(GL_EXTENSIONS); |
| 53 | |
| 54 | int extLength = strlen(ext); |
| 55 | |
| 56 | while (true) { |
| 57 | int n = strcspn(glstr, " "); |
| 58 | if (n == extLength && 0 == strncmp(ext, glstr, n)) { |
| 59 | return true; |
| 60 | } |
| 61 | if (0 == glstr[n]) { |
| 62 | return false; |
| 63 | } |
| 64 | glstr += n+1; |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | void gl_version(int* major, int* minor) { |
| 69 | const char* v = (const char*) glGetString(GL_VERSION); |
| 70 | if (NULL == v) { |
| 71 | GrAssert(0); |
| 72 | *major = 0; |
| 73 | *minor = 0; |
| 74 | return; |
| 75 | } |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 76 | #if GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 77 | int n = sscanf(v, "%d.%d", major, minor); |
| 78 | if (n != 2) { |
| 79 | GrAssert(0); |
| 80 | *major = 0; |
| 81 | *minor = 0; |
| 82 | return; |
| 83 | } |
| 84 | #else |
| 85 | char profile[2]; |
| 86 | int n = sscanf(v, "OpenGL ES-%c%c %d.%d", profile, profile+1, major, minor); |
| 87 | bool ok = 4 == n; |
| 88 | if (!ok) { |
| 89 | int n = sscanf(v, "OpenGL ES %d.%d", major, minor); |
| 90 | ok = 2 == n; |
| 91 | } |
| 92 | if (!ok) { |
| 93 | GrAssert(0); |
| 94 | *major = 0; |
| 95 | *minor = 0; |
| 96 | return; |
| 97 | } |
| 98 | #endif |
| 99 | } |
| 100 | /////////////////////////////////////////////////////////////////////////////// |
| 101 | |
| 102 | bool fbo_test(GrGLExts exts, int w, int h) { |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 103 | |
| 104 | GLint savedFBO; |
| 105 | GLint savedTexUnit; |
| 106 | GR_GL(GetIntegerv(GL_ACTIVE_TEXTURE, &savedTexUnit)); |
| 107 | GR_GL(GetIntegerv(GR_FRAMEBUFFER_BINDING, &savedFBO)); |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 108 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 109 | GR_GL(ActiveTexture(GL_TEXTURE0 + SPARE_TEX_UNIT)); |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 110 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 111 | GLuint testFBO; |
| 112 | GR_GLEXT(exts, GenFramebuffers(1, &testFBO)); |
| 113 | GR_GLEXT(exts, BindFramebuffer(GR_FRAMEBUFFER, testFBO)); |
| 114 | GLuint testRTTex; |
| 115 | GR_GL(GenTextures(1, &testRTTex)); |
| 116 | GR_GL(BindTexture(GL_TEXTURE_2D, testRTTex)); |
bsalomon@google.com | 2fbc7fa | 2011-01-05 16:34:41 +0000 | [diff] [blame] | 117 | // some implementations require texture to be mip-map complete before |
| 118 | // FBO with level 0 bound as color attachment will be framebuffer complete. |
| 119 | GR_GL(TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST)); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 120 | GR_GL(TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, |
| 121 | 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL)); |
| 122 | GR_GL(BindTexture(GL_TEXTURE_2D, 0)); |
| 123 | GR_GLEXT(exts, FramebufferTexture2D(GR_FRAMEBUFFER, GR_COLOR_ATTACHMENT0, |
| 124 | GL_TEXTURE_2D, testRTTex, 0)); |
| 125 | GLenum status = GR_GLEXT(exts, CheckFramebufferStatus(GR_FRAMEBUFFER)); |
| 126 | GR_GLEXT(exts, DeleteFramebuffers(1, &testFBO)); |
| 127 | GR_GL(DeleteTextures(1, &testRTTex)); |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 128 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 129 | GR_GL(ActiveTexture(savedTexUnit)); |
| 130 | GR_GLEXT(exts, BindFramebuffer(GR_FRAMEBUFFER, savedFBO)); |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 131 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 132 | return status == GR_FRAMEBUFFER_COMPLETE; |
| 133 | } |
| 134 | |
| 135 | /////////////////////////////////////////////////////////////////////////////// |
| 136 | |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 137 | static bool gPrintStartupSpew; |
| 138 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 139 | GrGpuGL::GrGpuGL() { |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 140 | if (gPrintStartupSpew) { |
| 141 | GrPrintf("------------------------- create GrGpuGL %p --------------\n", |
| 142 | this); |
| 143 | GrPrintf("------ VENDOR %s\n", glGetString(GL_VENDOR)); |
| 144 | GrPrintf("------ RENDERER %s\n", glGetString(GL_RENDERER)); |
| 145 | GrPrintf("------ VERSION %s\n", glGetString(GL_VERSION)); |
| 146 | GrPrintf("------ EXTENSIONS\n %s \n", glGetString(GL_EXTENSIONS)); |
| 147 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 148 | |
| 149 | GrGLClearErr(); |
| 150 | |
| 151 | GrGLInitExtensions(&fExts); |
| 152 | |
| 153 | resetContextHelper(); |
| 154 | |
| 155 | GrGLRenderTarget::GLRenderTargetIDs defaultRTIDs; |
reed@google.com | ac20fb9 | 2011-01-12 17:14:53 +0000 | [diff] [blame] | 156 | GR_GL_GetIntegerv(GR_FRAMEBUFFER_BINDING, (GLint*)&defaultRTIDs.fRTFBOID); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 157 | defaultRTIDs.fTexFBOID = defaultRTIDs.fRTFBOID; |
| 158 | defaultRTIDs.fMSColorRenderbufferID = 0; |
| 159 | defaultRTIDs.fStencilRenderbufferID = 0; |
| 160 | GLint vp[4]; |
reed@google.com | ac20fb9 | 2011-01-12 17:14:53 +0000 | [diff] [blame] | 161 | GR_GL_GetIntegerv(GL_VIEWPORT, vp); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 162 | fHWBounds.fViewportRect.setLTRB(vp[0], |
| 163 | vp[1] + vp[3], |
| 164 | vp[0] + vp[2], |
| 165 | vp[1]); |
| 166 | defaultRTIDs.fOwnIDs = false; |
| 167 | |
| 168 | fDefaultRenderTarget = new GrGLRenderTarget(defaultRTIDs, |
| 169 | fHWBounds.fViewportRect, |
| 170 | NULL, |
| 171 | this); |
| 172 | fHWDrawState.fRenderTarget = fDefaultRenderTarget; |
| 173 | fRenderTargetChanged = true; |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 174 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 175 | GLint maxTextureUnits; |
| 176 | // check FS and fixed-function texture unit limits |
| 177 | // we only use textures in the fragment stage currently. |
| 178 | // checks are > to make sure we have a spare unit. |
| 179 | #if GR_SUPPORT_GLDESKTOP || GR_SUPPORT_GLES2 |
| 180 | GR_GL(GetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &maxTextureUnits)); |
| 181 | GrAssert(maxTextureUnits > kNumStages); |
| 182 | #endif |
| 183 | #if GR_SUPPORT_GLDESKTOP || GR_SUPPORT_GLES1 |
| 184 | GR_GL(GetIntegerv(GL_MAX_TEXTURE_UNITS, &maxTextureUnits)); |
| 185 | GrAssert(maxTextureUnits > kNumStages); |
| 186 | #endif |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 187 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 188 | fCurrDrawState = fHWDrawState; |
| 189 | |
| 190 | //////////////////////////////////////////////////////////////////////////// |
| 191 | // Check for supported features. |
| 192 | |
| 193 | int major, minor; |
| 194 | gl_version(&major, &minor); |
| 195 | |
| 196 | GLint numFormats; |
reed@google.com | ac20fb9 | 2011-01-12 17:14:53 +0000 | [diff] [blame] | 197 | GR_GL_GetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &numFormats); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 198 | GrAutoSTMalloc<10, GLint> formats(numFormats); |
reed@google.com | ac20fb9 | 2011-01-12 17:14:53 +0000 | [diff] [blame] | 199 | GR_GL_GetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS, formats); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 200 | for (int i = 0; i < numFormats; ++i) { |
| 201 | if (formats[i] == GR_PALETTE8_RGBA8) { |
| 202 | f8bitPaletteSupport = true; |
| 203 | break; |
| 204 | } |
| 205 | } |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 206 | |
| 207 | if (gPrintStartupSpew) { |
| 208 | GrPrintf("Palette8 support: %s\n", (f8bitPaletteSupport ? "YES" : "NO")); |
| 209 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 210 | |
| 211 | GR_STATIC_ASSERT(0 == kNone_AALevel); |
| 212 | GR_STATIC_ASSERT(1 == kLow_AALevel); |
| 213 | GR_STATIC_ASSERT(2 == kMed_AALevel); |
| 214 | GR_STATIC_ASSERT(3 == kHigh_AALevel); |
| 215 | |
| 216 | memset(fAASamples, 0, sizeof(fAASamples)); |
| 217 | fMSFBOType = kNone_MSFBO; |
| 218 | if (has_gl_extension("GL_IMG_multisampled_render_to_texture")) { |
| 219 | fMSFBOType = kIMG_MSFBO; |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 220 | if (gPrintStartupSpew) { |
| 221 | GrPrintf("MSAA Support: IMG ES EXT.\n"); |
| 222 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 223 | } |
| 224 | else if (has_gl_extension("GL_APPLE_framebuffer_multisample")) { |
| 225 | fMSFBOType = kApple_MSFBO; |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 226 | if (gPrintStartupSpew) { |
| 227 | GrPrintf("MSAA Support: APPLE ES EXT.\n"); |
| 228 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 229 | } |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 230 | #if GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 231 | else if ((major >= 3) || |
| 232 | has_gl_extension("GL_ARB_framebuffer_object") || |
| 233 | (has_gl_extension("GL_EXT_framebuffer_multisample") && |
| 234 | has_gl_extension("GL_EXT_framebuffer_blit"))) { |
| 235 | fMSFBOType = kDesktop_MSFBO; |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 236 | if (gPrintStartupSpew) { |
| 237 | GrPrintf("MSAA Support: DESKTOP\n"); |
| 238 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 239 | } |
| 240 | #endif |
| 241 | else { |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 242 | if (gPrintStartupSpew) { |
| 243 | GrPrintf("MSAA Support: NONE\n"); |
| 244 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 245 | } |
| 246 | |
| 247 | if (kNone_MSFBO != fMSFBOType) { |
| 248 | GLint maxSamples; |
| 249 | GLenum maxSampleGetter = (kIMG_MSFBO == fMSFBOType) ? |
| 250 | GR_MAX_SAMPLES_IMG : |
| 251 | GR_MAX_SAMPLES; |
reed@google.com | ac20fb9 | 2011-01-12 17:14:53 +0000 | [diff] [blame] | 252 | GR_GL_GetIntegerv(maxSampleGetter, &maxSamples); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 253 | if (maxSamples > 1 ) { |
| 254 | fAASamples[kNone_AALevel] = 0; |
| 255 | fAASamples[kLow_AALevel] = GrMax(2, |
| 256 | GrFixedFloorToInt((GR_FixedHalf) * |
| 257 | maxSamples)); |
| 258 | fAASamples[kMed_AALevel] = GrMax(2, |
| 259 | GrFixedFloorToInt(((GR_Fixed1*3)/4) * |
| 260 | maxSamples)); |
| 261 | fAASamples[kHigh_AALevel] = maxSamples; |
| 262 | } |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 263 | if (gPrintStartupSpew) { |
| 264 | GrPrintf("\tMax Samples: %d\n", maxSamples); |
| 265 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 266 | } |
| 267 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 268 | #if GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 269 | fHasStencilWrap = (major >= 2 || (major == 1 && minor >= 4)) || |
| 270 | has_gl_extension("GL_EXT_stencil_wrap"); |
| 271 | #else |
| 272 | fHasStencilWrap = (major >= 2) || has_gl_extension("GL_OES_stencil_wrap"); |
| 273 | #endif |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 274 | if (gPrintStartupSpew) { |
| 275 | GrPrintf("Stencil Wrap: %s\n", (fHasStencilWrap ? "YES" : "NO")); |
| 276 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 277 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 278 | #if GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 279 | // we could also look for GL_ATI_separate_stencil extension or |
| 280 | // GL_EXT_stencil_two_side but they use different function signatures |
| 281 | // than GL2.0+ (and than each other). |
| 282 | fSingleStencilPassForWinding = (major >= 2); |
| 283 | #else |
| 284 | // ES 2 has two sided stencil but 1.1 doesn't. There doesn't seem to be |
| 285 | // an ES1 extension. |
| 286 | fSingleStencilPassForWinding = (major >= 2); |
| 287 | #endif |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 288 | if (gPrintStartupSpew) { |
| 289 | GrPrintf("Single Stencil Pass For Winding: %s\n", (fSingleStencilPassForWinding ? "YES" : "NO")); |
| 290 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 291 | |
| 292 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 293 | #if GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 294 | fRGBA8Renderbuffer = true; |
| 295 | #else |
| 296 | fRGBA8Renderbuffer = has_gl_extension("GL_OES_rgb8_rgba8"); |
| 297 | #endif |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 298 | if (gPrintStartupSpew) { |
| 299 | GrPrintf("RGBA Renderbuffer: %s\n", (fRGBA8Renderbuffer ? "YES" : "NO")); |
| 300 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 301 | |
bsalomon@google.com | ed3a068 | 2011-01-18 16:54:04 +0000 | [diff] [blame] | 302 | #if GR_SUPPORT_GLES |
| 303 | if (GR_GL_32BPP_COLOR_FORMAT == GR_BGRA) { |
| 304 | GrAssert(has_gl_extension("GL_EXT_texture_format_BGRA8888")); |
| 305 | } |
| 306 | #endif |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 307 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 308 | #if GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 309 | fBufferLockSupport = true; // we require VBO support and the desktop VBO |
| 310 | // extension includes glMapBuffer. |
| 311 | #else |
| 312 | fBufferLockSupport = has_gl_extension("GL_OES_mapbuffer"); |
| 313 | #endif |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 314 | if (gPrintStartupSpew) { |
| 315 | GrPrintf("Map Buffer: %s\n", (fBufferLockSupport ? "YES" : "NO")); |
| 316 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 317 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 318 | #if GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 319 | fNPOTTextureSupport = |
| 320 | (major >= 2 || has_gl_extension("GL_ARB_texture_non_power_of_two")) ? |
| 321 | kFull_NPOTTextureType : |
| 322 | kNone_NPOTTextureType; |
| 323 | #else |
| 324 | if (has_gl_extension("GL_OES_texture_npot")) { |
| 325 | fNPOTTextureSupport = kFull_NPOTTextureType; |
| 326 | } else if (major >= 2 || |
| 327 | has_gl_extension("GL_APPLE_texture_2D_limited_npot")) { |
| 328 | fNPOTTextureSupport = kNoRepeat_NPOTTextureType; |
| 329 | } else { |
| 330 | fNPOTTextureSupport = kNone_NPOTTextureType; |
| 331 | } |
| 332 | #endif |
| 333 | //////////////////////////////////////////////////////////////////////////// |
| 334 | // Experiments to determine limitations that can't be queried. TODO: Make |
| 335 | // these a preprocess that generate some compile time constants. |
| 336 | |
bsalomon@google.com | 2fbc7fa | 2011-01-05 16:34:41 +0000 | [diff] [blame] | 337 | // sanity check to make sure we can at least create an FBO from a POT texture |
| 338 | if (fNPOTTextureSupport < kFull_NPOTTextureType) { |
| 339 | bool npotFBOSuccess = fbo_test(fExts, 128, 128); |
| 340 | if (gPrintStartupSpew) { |
| 341 | if (!npotFBOSuccess) { |
| 342 | GrPrintf("FBO Sanity Test: FAILED\n"); |
| 343 | } else { |
| 344 | GrPrintf("FBO Sanity Test: PASSED\n"); |
| 345 | } |
| 346 | } |
| 347 | } |
reed@google.com | ac20fb9 | 2011-01-12 17:14:53 +0000 | [diff] [blame] | 348 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 349 | /* Experimentation has found that some GLs that support NPOT textures |
| 350 | do not support FBOs with a NPOT texture. They report "unsupported" FBO |
| 351 | status. I don't know how to explicitly query for this. Do an |
| 352 | experiment. Note they may support NPOT with a renderbuffer but not a |
| 353 | texture. Presumably, the implementation bloats the renderbuffer |
| 354 | internally to the next POT. |
| 355 | */ |
| 356 | if (fNPOTTextureSupport == kFull_NPOTTextureType) { |
| 357 | bool npotFBOSuccess = fbo_test(fExts, 200, 200); |
| 358 | if (!npotFBOSuccess) { |
| 359 | fNPOTTextureSupport = kNonRendertarget_NPOTTextureType; |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 360 | if (gPrintStartupSpew) { |
| 361 | GrPrintf("NPOT Renderbuffer Test: FAILED\n"); |
| 362 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 363 | } else { |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 364 | if (gPrintStartupSpew) { |
| 365 | GrPrintf("NPOT Renderbuffer Test: PASSED\n"); |
| 366 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 367 | } |
| 368 | } |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 369 | |
| 370 | if (gPrintStartupSpew) { |
| 371 | switch (fNPOTTextureSupport) { |
| 372 | case kNone_NPOTTextureType: |
| 373 | GrPrintf("NPOT Support: NONE\n"); |
| 374 | break; |
| 375 | case kNoRepeat_NPOTTextureType: |
| 376 | GrPrintf("NPOT Support: NO REPEAT\n"); |
| 377 | break; |
| 378 | case kNonRendertarget_NPOTTextureType: |
| 379 | GrPrintf("NPOT Support: NO FBOTEX\n"); |
| 380 | break; |
| 381 | case kFull_NPOTTextureType: |
| 382 | GrPrintf("NPOT Support: FULL\n"); |
| 383 | break; |
| 384 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 385 | } |
| 386 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 387 | /* The iPhone 4 has a restriction that for an FBO with texture color |
| 388 | attachment with height <= 8 then the width must be <= height. Here |
| 389 | we look for such a limitation. |
| 390 | */ |
| 391 | fMinRenderTargetHeight = GR_INVAL_GLINT; |
| 392 | GLint maxRenderSize; |
reed@google.com | ac20fb9 | 2011-01-12 17:14:53 +0000 | [diff] [blame] | 393 | GR_GL_GetIntegerv(GR_MAX_RENDERBUFFER_SIZE, &maxRenderSize); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 394 | |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 395 | if (gPrintStartupSpew) { |
| 396 | GrPrintf("Small height FBO texture experiments\n"); |
| 397 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 398 | for (GLuint i = 1; i <= 256; |
| 399 | (kFull_NPOTTextureType != fNPOTTextureSupport) ? i *= 2 : ++i) { |
| 400 | GLuint w = maxRenderSize; |
| 401 | GLuint h = i; |
| 402 | if (fbo_test(fExts, w, h)) { |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 403 | if (gPrintStartupSpew) { |
| 404 | GrPrintf("\t[%d, %d]: PASSED\n", w, h); |
| 405 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 406 | fMinRenderTargetHeight = i; |
| 407 | break; |
| 408 | } else { |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 409 | if (gPrintStartupSpew) { |
| 410 | GrPrintf("\t[%d, %d]: FAILED\n", w, h); |
| 411 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 412 | } |
| 413 | } |
| 414 | GrAssert(GR_INVAL_GLINT != fMinRenderTargetHeight); |
| 415 | |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 416 | if (gPrintStartupSpew) { |
| 417 | GrPrintf("Small width FBO texture experiments\n"); |
| 418 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 419 | fMinRenderTargetWidth = GR_MAX_GLUINT; |
| 420 | for (GLuint i = 1; i <= 256; |
| 421 | (kFull_NPOTTextureType != fNPOTTextureSupport) ? i *= 2 : ++i) { |
| 422 | GLuint w = i; |
| 423 | GLuint h = maxRenderSize; |
| 424 | if (fbo_test(fExts, w, h)) { |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 425 | if (gPrintStartupSpew) { |
| 426 | GrPrintf("\t[%d, %d]: PASSED\n", w, h); |
| 427 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 428 | fMinRenderTargetWidth = i; |
| 429 | break; |
| 430 | } else { |
reed@google.com | eeeb5a0 | 2010-12-23 15:12:59 +0000 | [diff] [blame] | 431 | if (gPrintStartupSpew) { |
| 432 | GrPrintf("\t[%d, %d]: FAILED\n", w, h); |
| 433 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 434 | } |
| 435 | } |
| 436 | GrAssert(GR_INVAL_GLINT != fMinRenderTargetWidth); |
| 437 | |
| 438 | #if GR_IOS_BUILD |
| 439 | /* |
| 440 | The iPad seems to fail, at least sometimes, if the height is < 16, |
| 441 | so we pin the values here for now. A better fix might be to |
| 442 | conditionalize this based on known that its an iPad (or some other |
| 443 | check). |
| 444 | */ |
| 445 | fMinRenderTargetWidth = GrMax<GLuint>(fMinRenderTargetWidth, 16); |
| 446 | fMinRenderTargetHeight = GrMax<GLuint>(fMinRenderTargetHeight, 16); |
| 447 | #endif |
| 448 | // bind back to original FBO |
| 449 | GR_GLEXT(fExts, BindFramebuffer(GR_FRAMEBUFFER, defaultRTIDs.fRTFBOID)); |
| 450 | #if GR_COLLECT_STATS |
| 451 | ++fStats.fRenderTargetChngCnt; |
| 452 | #endif |
| 453 | eraseStencil(0, ~0); |
| 454 | } |
| 455 | |
| 456 | GrGpuGL::~GrGpuGL() { |
| 457 | fDefaultRenderTarget->abandon(); |
| 458 | fDefaultRenderTarget->unref(); |
| 459 | } |
| 460 | |
| 461 | void GrGpuGL::resetContextHelper() { |
| 462 | // We detect cases when blending is effectively off |
| 463 | fHWBlendDisabled = false; |
| 464 | GR_GL(Enable(GL_BLEND)); |
| 465 | |
| 466 | // this is always disabled |
| 467 | GR_GL(Disable(GL_CULL_FACE)); |
| 468 | |
| 469 | GR_GL(Disable(GL_DITHER)); |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 470 | #if GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 471 | GR_GL(Disable(GL_LINE_SMOOTH)); |
| 472 | GR_GL(Disable(GL_POINT_SMOOTH)); |
bsalomon@google.com | da96ea0 | 2010-12-23 16:53:57 +0000 | [diff] [blame] | 473 | GR_GL(Disable(GL_MULTISAMPLE)); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 474 | #endif |
| 475 | |
| 476 | // we only ever use lines in hairline mode |
| 477 | GR_GL(LineWidth(1)); |
| 478 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 479 | // invalid |
| 480 | fActiveTextureUnitIdx = -1; |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 481 | |
| 482 | fHWDrawState.fFlagBits = 0; |
| 483 | |
| 484 | // illegal values |
| 485 | fHWDrawState.fSrcBlend = (BlendCoeff)-1; |
| 486 | fHWDrawState.fDstBlend = (BlendCoeff)-1; |
| 487 | fHWDrawState.fColor = GrColor_ILLEGAL; |
| 488 | fHWDrawState.fPointSize = -1; |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 489 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 490 | fHWDrawState.fViewMatrix.setScale(GR_ScalarMax, GR_ScalarMax); // illegal |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 491 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 492 | for (int s = 0; s < kNumStages; ++s) { |
| 493 | fHWDrawState.fTextures[s] = NULL; |
| 494 | fHWDrawState.fSamplerStates[s].setRadial2Params(-GR_ScalarMax, |
| 495 | -GR_ScalarMax, |
| 496 | true); |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 497 | fHWDrawState.fTextureMatrices[s].setScale(GR_ScalarMax, GR_ScalarMax); |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 498 | } |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 499 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 500 | GR_GL(Scissor(0,0,0,0)); |
| 501 | fHWBounds.fScissorRect.setLTRB(0,0,0,0); |
| 502 | fHWBounds.fScissorEnabled = false; |
| 503 | GR_GL(Disable(GL_SCISSOR_TEST)); |
| 504 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 505 | // disabling the stencil test also disables |
| 506 | // stencil buffer writes |
| 507 | GR_GL(Disable(GL_STENCIL_TEST)); |
| 508 | GR_GL(StencilMask(0xffffffff)); |
| 509 | GR_GL(ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE)); |
| 510 | fHWDrawState.fReverseFill = false; |
| 511 | fHWDrawState.fStencilPass = kNone_StencilPass; |
| 512 | fHWStencilClip = false; |
| 513 | |
| 514 | fHWGeometryState.fIndexBuffer = NULL; |
| 515 | fHWGeometryState.fVertexBuffer = NULL; |
| 516 | GR_GL(BindBuffer(GL_ARRAY_BUFFER, 0)); |
| 517 | GR_GL(BindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0)); |
| 518 | |
| 519 | fHWDrawState.fRenderTarget = NULL; |
| 520 | } |
| 521 | |
| 522 | void GrGpuGL::resetContext() { |
| 523 | INHERITED::resetContext(); |
| 524 | resetContextHelper(); |
| 525 | } |
| 526 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 527 | GrRenderTarget* GrGpuGL::createPlatformRenderTarget( |
| 528 | intptr_t platformRenderTarget, |
| 529 | int width, int height) { |
| 530 | GrGLRenderTarget::GLRenderTargetIDs rtIDs; |
| 531 | rtIDs.fStencilRenderbufferID = 0; |
| 532 | rtIDs.fMSColorRenderbufferID = 0; |
| 533 | rtIDs.fTexFBOID = 0; |
| 534 | rtIDs.fOwnIDs = false; |
| 535 | |
| 536 | GrIRect viewport; |
| 537 | |
| 538 | // viewport is in GL coords (top >= bottom) |
| 539 | viewport.setLTRB(0, height, width, 0); |
| 540 | |
| 541 | rtIDs.fRTFBOID = (GLuint)platformRenderTarget; |
| 542 | rtIDs.fTexFBOID = (GLuint)platformRenderTarget; |
| 543 | |
| 544 | GrGLRenderTarget* rt = new GrGLRenderTarget(rtIDs, viewport, NULL, this); |
| 545 | |
| 546 | return rt; |
| 547 | } |
| 548 | |
bsalomon@google.com | 3f3ffd6 | 2011-01-18 17:14:52 +0000 | [diff] [blame^] | 549 | // defines stencil formats from more to less preferred |
| 550 | GLenum GR_GL_STENCIL_FORMAT_ARRAY[] = {
|
| 551 | GR_STENCIL_INDEX8,
|
| 552 |
|
| 553 | #if GR_SUPPORT_GLDESKTOP
|
| 554 | GR_STENCIL_INDEX16,
|
| 555 | #endif
|
| 556 |
|
| 557 | GR_DEPTH24_STENCIL8,
|
| 558 | GR_STENCIL_INDEX4,
|
| 559 |
|
| 560 | #if GR_SUPPORT_GLDESKTOP
|
| 561 | GL_STENCIL_INDEX, |
| 562 | GR_DEPTH_STENCIL, |
| 563 | #endif |
| 564 | }; |
| 565 | |
| 566 | // good to set a break-point here to know when createTexture fails |
| 567 | static GrTexture* return_null_texture() { |
| 568 | // GrAssert(!"null texture"); |
| 569 | return NULL; |
| 570 | } |
| 571 | |
| 572 | #if GR_DEBUG |
| 573 | static size_t as_size_t(int x) { |
| 574 | return x; |
| 575 | } |
| 576 | #endif |
| 577 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 578 | GrTexture* GrGpuGL::createTexture(const TextureDesc& desc, |
| 579 | const void* srcData, size_t rowBytes) { |
| 580 | |
| 581 | #if GR_COLLECT_STATS |
| 582 | ++fStats.fTextureCreateCnt; |
| 583 | #endif |
reed@google.com | 1fcd51e | 2011-01-05 15:50:27 +0000 | [diff] [blame] | 584 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 585 | setSpareTextureUnit(); |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 586 | |
bsalomon@google.com | da96ea0 | 2010-12-23 16:53:57 +0000 | [diff] [blame] | 587 | static const GrGLTexture::TexParams DEFAULT_PARAMS = { |
| 588 | GL_NEAREST, |
| 589 | GL_CLAMP_TO_EDGE, |
| 590 | GL_CLAMP_TO_EDGE |
| 591 | }; |
reed@google.com | 1fcd51e | 2011-01-05 15:50:27 +0000 | [diff] [blame] | 592 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 593 | GrGLTexture::GLTextureDesc glDesc; |
| 594 | GLenum internalFormat; |
| 595 | |
| 596 | glDesc.fContentWidth = desc.fWidth; |
| 597 | glDesc.fContentHeight = desc.fHeight; |
| 598 | glDesc.fAllocWidth = desc.fWidth; |
| 599 | glDesc.fAllocHeight = desc.fHeight; |
| 600 | glDesc.fFormat = desc.fFormat; |
| 601 | |
| 602 | bool renderTarget = 0 != (desc.fFlags & kRenderTarget_TextureFlag); |
| 603 | if (!canBeTexture(desc.fFormat, |
| 604 | &internalFormat, |
| 605 | &glDesc.fUploadFormat, |
| 606 | &glDesc.fUploadType)) { |
| 607 | return return_null_texture(); |
| 608 | } |
| 609 | |
| 610 | GrAssert(as_size_t(desc.fAALevel) < GR_ARRAY_COUNT(fAASamples)); |
| 611 | GLint samples = fAASamples[desc.fAALevel]; |
| 612 | if (kNone_MSFBO == fMSFBOType && desc.fAALevel != kNone_AALevel) { |
| 613 | GrPrintf("AA RT requested but not supported on this platform."); |
| 614 | } |
| 615 | |
| 616 | GR_GL(GenTextures(1, &glDesc.fTextureID)); |
| 617 | if (!glDesc.fTextureID) { |
| 618 | return return_null_texture(); |
| 619 | } |
| 620 | |
| 621 | glDesc.fUploadByteCount = GrTexture::BytesPerPixel(desc.fFormat); |
| 622 | |
| 623 | /* |
| 624 | * check if our srcData has extra bytes past each row. If so, we need |
| 625 | * to trim those off here, since GL doesn't let us pass the rowBytes as |
| 626 | * a parameter to glTexImage2D |
| 627 | */ |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 628 | #if GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 629 | if (srcData) { |
| 630 | GR_GL(PixelStorei(GL_UNPACK_ROW_LENGTH, |
| 631 | rowBytes / glDesc.fUploadByteCount)); |
| 632 | } |
| 633 | #else |
| 634 | GrAutoSMalloc<128 * 128> trimStorage; |
| 635 | size_t trimRowBytes = desc.fWidth * glDesc.fUploadByteCount; |
| 636 | if (srcData && (trimRowBytes < rowBytes)) { |
| 637 | size_t trimSize = desc.fHeight * trimRowBytes; |
| 638 | trimStorage.realloc(trimSize); |
| 639 | // now copy the data into our new storage, skipping the trailing bytes |
| 640 | const char* src = (const char*)srcData; |
| 641 | char* dst = (char*)trimStorage.get(); |
| 642 | for (uint32_t y = 0; y < desc.fHeight; y++) { |
| 643 | memcpy(dst, src, trimRowBytes); |
| 644 | src += rowBytes; |
| 645 | dst += trimRowBytes; |
| 646 | } |
| 647 | // now point srcData to our trimmed version |
| 648 | srcData = trimStorage.get(); |
| 649 | } |
| 650 | #endif |
| 651 | |
| 652 | if (fNPOTTextureSupport < kNonRendertarget_NPOTTextureType || |
| 653 | (fNPOTTextureSupport == kNonRendertarget_NPOTTextureType && |
| 654 | renderTarget)) { |
| 655 | glDesc.fAllocWidth = GrNextPow2(desc.fWidth); |
| 656 | glDesc.fAllocHeight = GrNextPow2(desc.fHeight); |
| 657 | } |
| 658 | |
| 659 | if (renderTarget) { |
| 660 | glDesc.fAllocWidth = GrMax<int>(fMinRenderTargetWidth, |
| 661 | glDesc.fAllocWidth); |
| 662 | glDesc.fAllocHeight = GrMax<int>(fMinRenderTargetHeight, |
| 663 | glDesc.fAllocHeight); |
| 664 | } |
| 665 | |
| 666 | GR_GL(BindTexture(GL_TEXTURE_2D, glDesc.fTextureID)); |
reed@google.com | 1fcd51e | 2011-01-05 15:50:27 +0000 | [diff] [blame] | 667 | GR_GL(TexParameteri(GL_TEXTURE_2D, |
| 668 | GL_TEXTURE_MAG_FILTER, |
bsalomon@google.com | da96ea0 | 2010-12-23 16:53:57 +0000 | [diff] [blame] | 669 | DEFAULT_PARAMS.fFilter)); |
reed@google.com | 1fcd51e | 2011-01-05 15:50:27 +0000 | [diff] [blame] | 670 | GR_GL(TexParameteri(GL_TEXTURE_2D, |
| 671 | GL_TEXTURE_MIN_FILTER, |
bsalomon@google.com | da96ea0 | 2010-12-23 16:53:57 +0000 | [diff] [blame] | 672 | DEFAULT_PARAMS.fFilter)); |
reed@google.com | 1fcd51e | 2011-01-05 15:50:27 +0000 | [diff] [blame] | 673 | GR_GL(TexParameteri(GL_TEXTURE_2D, |
bsalomon@google.com | da96ea0 | 2010-12-23 16:53:57 +0000 | [diff] [blame] | 674 | GL_TEXTURE_WRAP_S, |
| 675 | DEFAULT_PARAMS.fWrapS)); |
reed@google.com | 1fcd51e | 2011-01-05 15:50:27 +0000 | [diff] [blame] | 676 | GR_GL(TexParameteri(GL_TEXTURE_2D, |
| 677 | GL_TEXTURE_WRAP_T, |
bsalomon@google.com | da96ea0 | 2010-12-23 16:53:57 +0000 | [diff] [blame] | 678 | DEFAULT_PARAMS.fWrapT)); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 679 | |
| 680 | GR_GL(PixelStorei(GL_UNPACK_ALIGNMENT, glDesc.fUploadByteCount)); |
| 681 | if (GrTexture::kIndex_8_PixelConfig == desc.fFormat && |
| 682 | supports8BitPalette()) { |
| 683 | // ES only supports CompressedTexImage2D, not CompressedTexSubimage2D |
| 684 | GrAssert(desc.fWidth == glDesc.fAllocWidth); |
| 685 | GrAssert(desc.fHeight == glDesc.fAllocHeight); |
| 686 | GLsizei imageSize = glDesc.fAllocWidth * glDesc.fAllocHeight + |
| 687 | kColorTableSize; |
| 688 | GR_GL(CompressedTexImage2D(GL_TEXTURE_2D, 0, glDesc.fUploadFormat, |
| 689 | glDesc.fAllocWidth, glDesc.fAllocHeight, |
| 690 | 0, imageSize, srcData)); |
| 691 | GrGL_RestoreResetRowLength(); |
| 692 | } else { |
| 693 | if (NULL != srcData && (glDesc.fAllocWidth != desc.fWidth || |
| 694 | glDesc.fAllocHeight != desc.fHeight)) { |
| 695 | GR_GL(TexImage2D(GL_TEXTURE_2D, 0, internalFormat, |
| 696 | glDesc.fAllocWidth, glDesc.fAllocHeight, |
| 697 | 0, glDesc.fUploadFormat, glDesc.fUploadType, NULL)); |
| 698 | GR_GL(TexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, desc.fWidth, |
| 699 | desc.fHeight, glDesc.fUploadFormat, |
| 700 | glDesc.fUploadType, srcData)); |
| 701 | GrGL_RestoreResetRowLength(); |
| 702 | |
| 703 | uint32_t extraW = glDesc.fAllocWidth - desc.fWidth; |
| 704 | uint32_t extraH = glDesc.fAllocHeight - desc.fHeight; |
| 705 | uint32_t maxTexels = extraW * extraH; |
| 706 | maxTexels = GrMax(extraW * desc.fHeight, maxTexels); |
| 707 | maxTexels = GrMax(desc.fWidth * extraH, maxTexels); |
| 708 | |
| 709 | GrAutoSMalloc<128*128> texels(glDesc.fUploadByteCount * maxTexels); |
| 710 | |
| 711 | uint32_t rowSize = desc.fWidth * glDesc.fUploadByteCount; |
| 712 | if (extraH) { |
| 713 | uint8_t* lastRowStart = (uint8_t*) srcData + |
| 714 | (desc.fHeight - 1) * rowSize; |
| 715 | uint8_t* extraRowStart = (uint8_t*)texels.get(); |
| 716 | |
| 717 | for (uint32_t i = 0; i < extraH; ++i) { |
| 718 | memcpy(extraRowStart, lastRowStart, rowSize); |
| 719 | extraRowStart += rowSize; |
| 720 | } |
| 721 | GR_GL(TexSubImage2D(GL_TEXTURE_2D, 0, 0, desc.fHeight, desc.fWidth, |
| 722 | extraH, glDesc.fUploadFormat, glDesc.fUploadType, |
| 723 | texels.get())); |
| 724 | } |
| 725 | if (extraW) { |
| 726 | uint8_t* edgeTexel = (uint8_t*)srcData + rowSize - glDesc.fUploadByteCount; |
| 727 | uint8_t* extraTexel = (uint8_t*)texels.get(); |
| 728 | for (uint32_t j = 0; j < desc.fHeight; ++j) { |
| 729 | for (uint32_t i = 0; i < extraW; ++i) { |
| 730 | memcpy(extraTexel, edgeTexel, glDesc.fUploadByteCount); |
| 731 | extraTexel += glDesc.fUploadByteCount; |
| 732 | } |
| 733 | edgeTexel += rowSize; |
| 734 | } |
| 735 | GR_GL(TexSubImage2D(GL_TEXTURE_2D, 0, desc.fWidth, 0, extraW, |
| 736 | desc.fHeight, glDesc.fUploadFormat, |
| 737 | glDesc.fUploadType, texels.get())); |
| 738 | } |
| 739 | if (extraW && extraH) { |
| 740 | uint8_t* cornerTexel = (uint8_t*)srcData + desc.fHeight * rowSize |
| 741 | - glDesc.fUploadByteCount; |
| 742 | uint8_t* extraTexel = (uint8_t*)texels.get(); |
| 743 | for (uint32_t i = 0; i < extraW*extraH; ++i) { |
| 744 | memcpy(extraTexel, cornerTexel, glDesc.fUploadByteCount); |
| 745 | extraTexel += glDesc.fUploadByteCount; |
| 746 | } |
| 747 | GR_GL(TexSubImage2D(GL_TEXTURE_2D, 0, desc.fWidth, desc.fHeight, |
| 748 | extraW, extraH, glDesc.fUploadFormat, |
| 749 | glDesc.fUploadType, texels.get())); |
| 750 | } |
| 751 | |
| 752 | } else { |
| 753 | GR_GL(TexImage2D(GL_TEXTURE_2D, 0, internalFormat, glDesc.fAllocWidth, |
| 754 | glDesc.fAllocHeight, 0, glDesc.fUploadFormat, |
| 755 | glDesc.fUploadType, srcData)); |
| 756 | GrGL_RestoreResetRowLength(); |
| 757 | } |
| 758 | } |
| 759 | |
| 760 | glDesc.fOrientation = GrGLTexture::kTopDown_Orientation; |
| 761 | |
| 762 | GrGLRenderTarget::GLRenderTargetIDs rtIDs; |
| 763 | rtIDs.fStencilRenderbufferID = 0; |
| 764 | rtIDs.fMSColorRenderbufferID = 0; |
| 765 | rtIDs.fRTFBOID = 0; |
| 766 | rtIDs.fTexFBOID = 0; |
| 767 | rtIDs.fOwnIDs = true; |
| 768 | GLenum msColorRenderbufferFormat = -1; |
| 769 | |
| 770 | if (renderTarget) { |
| 771 | #if GR_COLLECT_STATS |
| 772 | ++fStats.fRenderTargetCreateCnt; |
| 773 | #endif |
| 774 | bool failed = true; |
| 775 | GLenum status; |
| 776 | GLint err; |
| 777 | |
| 778 | // If need have both RT flag and srcData we have |
| 779 | // to invert the data before uploading because FBO |
| 780 | // will be rendered bottom up |
| 781 | GrAssert(NULL == srcData); |
| 782 | glDesc.fOrientation = GrGLTexture::kBottomUp_Orientation; |
| 783 | |
| 784 | GR_GLEXT(fExts, GenFramebuffers(1, &rtIDs.fTexFBOID)); |
| 785 | GrAssert(rtIDs.fTexFBOID); |
| 786 | |
| 787 | // If we are using multisampling and any extension other than the IMG |
| 788 | // one we will create two FBOs. We render to one and then resolve to |
| 789 | // the texture bound to the other. The IMG extension does an implicit |
| 790 | // resolve. |
| 791 | if (samples > 1 && kIMG_MSFBO != fMSFBOType && kNone_MSFBO != fMSFBOType) { |
| 792 | GR_GLEXT(fExts, GenFramebuffers(1, &rtIDs.fRTFBOID)); |
| 793 | GrAssert(0 != rtIDs.fRTFBOID); |
| 794 | GR_GLEXT(fExts, GenRenderbuffers(1, &rtIDs.fMSColorRenderbufferID)); |
| 795 | GrAssert(0 != rtIDs.fMSColorRenderbufferID); |
| 796 | if (!fboInternalFormat(desc.fFormat, &msColorRenderbufferFormat)) { |
| 797 | GR_GLEXT(fExts, |
| 798 | DeleteRenderbuffers(1, &rtIDs.fMSColorRenderbufferID)); |
| 799 | GR_GL(DeleteTextures(1, &glDesc.fTextureID)); |
| 800 | GR_GLEXT(fExts, DeleteFramebuffers(1, &rtIDs.fTexFBOID)); |
| 801 | GR_GLEXT(fExts, DeleteFramebuffers(1, &rtIDs.fRTFBOID)); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 802 | return return_null_texture(); |
| 803 | } |
| 804 | } else { |
| 805 | rtIDs.fRTFBOID = rtIDs.fTexFBOID; |
| 806 | } |
| 807 | int attempts = 1; |
| 808 | if (!(kNoPathRendering_TextureFlag & desc.fFlags)) { |
| 809 | GR_GLEXT(fExts, GenRenderbuffers(1, &rtIDs.fStencilRenderbufferID)); |
| 810 | GrAssert(0 != rtIDs.fStencilRenderbufferID); |
| 811 | attempts = GR_ARRAY_COUNT(GR_GL_STENCIL_FORMAT_ARRAY); |
| 812 | } |
| 813 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 814 | // someone suggested that some systems might require |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 815 | // unbinding the texture before we call FramebufferTexture2D |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 816 | // (seems unlikely) |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 817 | GR_GL(BindTexture(GL_TEXTURE_2D, 0)); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 818 | |
| 819 | err = ~GL_NO_ERROR; |
| 820 | for (int i = 0; i < attempts; ++i) { |
| 821 | if (rtIDs.fStencilRenderbufferID) { |
| 822 | GR_GLEXT(fExts, BindRenderbuffer(GR_RENDERBUFFER, |
| 823 | rtIDs.fStencilRenderbufferID)); |
| 824 | if (samples > 1) { |
| 825 | GR_GLEXT_NO_ERR(fExts, RenderbufferStorageMultisample( |
| 826 | GR_RENDERBUFFER, |
| 827 | samples, |
| 828 | GR_GL_STENCIL_FORMAT_ARRAY[i], |
| 829 | glDesc.fAllocWidth, |
| 830 | glDesc.fAllocHeight)); |
| 831 | } else { |
| 832 | GR_GLEXT_NO_ERR(fExts, RenderbufferStorage( |
| 833 | GR_RENDERBUFFER, |
| 834 | GR_GL_STENCIL_FORMAT_ARRAY[i], |
| 835 | glDesc.fAllocWidth, |
| 836 | glDesc.fAllocHeight)); |
| 837 | } |
| 838 | err = glGetError(); |
| 839 | if (err != GL_NO_ERROR) { |
| 840 | continue; |
| 841 | } |
| 842 | } |
| 843 | if (rtIDs.fRTFBOID != rtIDs.fTexFBOID) { |
| 844 | GrAssert(samples > 1); |
| 845 | GR_GLEXT(fExts, BindRenderbuffer(GR_RENDERBUFFER, |
| 846 | rtIDs.fMSColorRenderbufferID)); |
| 847 | GR_GLEXT_NO_ERR(fExts, RenderbufferStorageMultisample( |
| 848 | GR_RENDERBUFFER, |
| 849 | samples, |
| 850 | msColorRenderbufferFormat, |
| 851 | glDesc.fAllocWidth, |
| 852 | glDesc.fAllocHeight)); |
| 853 | err = glGetError(); |
| 854 | if (err != GL_NO_ERROR) { |
| 855 | continue; |
| 856 | } |
| 857 | } |
| 858 | GR_GLEXT(fExts, BindFramebuffer(GR_FRAMEBUFFER, rtIDs.fTexFBOID)); |
| 859 | |
| 860 | #if GR_COLLECT_STATS |
| 861 | ++fStats.fRenderTargetChngCnt; |
| 862 | #endif |
| 863 | if (kIMG_MSFBO == fMSFBOType && samples > 1) { |
| 864 | GR_GLEXT(fExts, FramebufferTexture2DMultisample( |
| 865 | GR_FRAMEBUFFER, |
| 866 | GR_COLOR_ATTACHMENT0, |
| 867 | GL_TEXTURE_2D, |
| 868 | glDesc.fTextureID, |
| 869 | 0, |
| 870 | samples)); |
| 871 | |
| 872 | } else { |
| 873 | GR_GLEXT(fExts, FramebufferTexture2D(GR_FRAMEBUFFER, |
| 874 | GR_COLOR_ATTACHMENT0, |
| 875 | GL_TEXTURE_2D, |
| 876 | glDesc.fTextureID, 0)); |
| 877 | } |
| 878 | if (rtIDs.fRTFBOID != rtIDs.fTexFBOID) { |
| 879 | GLenum status = GR_GLEXT(fExts, |
| 880 | CheckFramebufferStatus(GR_FRAMEBUFFER)); |
| 881 | if (status != GR_FRAMEBUFFER_COMPLETE) { |
| 882 | GrPrintf("-- glCheckFramebufferStatus %x %d %d\n", |
| 883 | status, desc.fWidth, desc.fHeight); |
| 884 | continue; |
| 885 | } |
| 886 | GR_GLEXT(fExts, BindFramebuffer(GR_FRAMEBUFFER, rtIDs.fRTFBOID)); |
| 887 | #if GR_COLLECT_STATS |
| 888 | ++fStats.fRenderTargetChngCnt; |
| 889 | #endif |
| 890 | GR_GLEXT(fExts, FramebufferRenderbuffer(GR_FRAMEBUFFER, |
| 891 | GR_COLOR_ATTACHMENT0, |
| 892 | GR_RENDERBUFFER, |
| 893 | rtIDs.fMSColorRenderbufferID)); |
| 894 | |
| 895 | } |
| 896 | if (rtIDs.fStencilRenderbufferID) { |
| 897 | // bind the stencil to rt fbo if present, othewise the tex fbo |
| 898 | GR_GLEXT(fExts, FramebufferRenderbuffer(GR_FRAMEBUFFER, |
| 899 | GR_STENCIL_ATTACHMENT, |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 900 | GR_RENDERBUFFER, |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 901 | rtIDs.fStencilRenderbufferID)); |
| 902 | } |
| 903 | status = GR_GLEXT(fExts, CheckFramebufferStatus(GR_FRAMEBUFFER)); |
| 904 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 905 | #if GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 906 | // On some implementations you have to be bound as DEPTH_STENCIL. |
| 907 | // (Even binding to DEPTH and STENCIL separately with the same |
| 908 | // buffer doesn't work.) |
| 909 | if (rtIDs.fStencilRenderbufferID && |
| 910 | status != GR_FRAMEBUFFER_COMPLETE) { |
| 911 | GR_GLEXT(fExts, FramebufferRenderbuffer(GR_FRAMEBUFFER, |
| 912 | GR_STENCIL_ATTACHMENT, |
| 913 | GR_RENDERBUFFER, |
| 914 | 0)); |
| 915 | GR_GLEXT(fExts, |
| 916 | FramebufferRenderbuffer(GR_FRAMEBUFFER, |
| 917 | GR_DEPTH_STENCIL_ATTACHMENT, |
| 918 | GR_RENDERBUFFER, |
| 919 | rtIDs.fStencilRenderbufferID)); |
| 920 | status = GR_GLEXT(fExts, CheckFramebufferStatus(GR_FRAMEBUFFER)); |
| 921 | } |
| 922 | #endif |
| 923 | if (status != GR_FRAMEBUFFER_COMPLETE) { |
| 924 | GrPrintf("-- glCheckFramebufferStatus %x %d %d\n", |
| 925 | status, desc.fWidth, desc.fHeight); |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 926 | #if GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 927 | if (rtIDs.fStencilRenderbufferID) { |
| 928 | GR_GLEXT(fExts, FramebufferRenderbuffer(GR_FRAMEBUFFER, |
| 929 | GR_DEPTH_STENCIL_ATTACHMENT, |
| 930 | GR_RENDERBUFFER, |
| 931 | 0)); |
| 932 | } |
| 933 | #endif |
| 934 | continue; |
| 935 | } |
| 936 | // we're successful! |
| 937 | failed = false; |
| 938 | break; |
| 939 | } |
| 940 | if (failed) { |
| 941 | if (rtIDs.fStencilRenderbufferID) { |
| 942 | GR_GLEXT(fExts, |
| 943 | DeleteRenderbuffers(1, &rtIDs.fStencilRenderbufferID)); |
| 944 | } |
| 945 | if (rtIDs.fMSColorRenderbufferID) { |
| 946 | GR_GLEXT(fExts, |
| 947 | DeleteRenderbuffers(1, &rtIDs.fMSColorRenderbufferID)); |
| 948 | } |
| 949 | if (rtIDs.fRTFBOID != rtIDs.fTexFBOID) { |
| 950 | GR_GLEXT(fExts, DeleteFramebuffers(1, &rtIDs.fRTFBOID)); |
| 951 | } |
| 952 | if (rtIDs.fTexFBOID) { |
| 953 | GR_GLEXT(fExts, DeleteFramebuffers(1, &rtIDs.fTexFBOID)); |
| 954 | } |
| 955 | GR_GL(DeleteTextures(1, &glDesc.fTextureID)); |
| 956 | return return_null_texture(); |
| 957 | } |
| 958 | } |
| 959 | #ifdef TRACE_TEXTURE_CREATION |
| 960 | GrPrintf("--- new texture [%d] size=(%d %d) bpp=%d\n", |
| 961 | tex->fTextureID, width, height, tex->fUploadByteCount); |
| 962 | #endif |
bsalomon@google.com | da96ea0 | 2010-12-23 16:53:57 +0000 | [diff] [blame] | 963 | GrGLTexture* tex = new GrGLTexture(glDesc, rtIDs, DEFAULT_PARAMS, this); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 964 | |
| 965 | if (0 != rtIDs.fTexFBOID) { |
| 966 | GrRenderTarget* rt = tex->asRenderTarget(); |
| 967 | // We've messed with FBO state but may not have set the correct viewport |
| 968 | // so just dirty the rendertarget state to force a resend. |
| 969 | fHWDrawState.fRenderTarget = NULL; |
| 970 | |
| 971 | // clear the new stencil buffer if we have one |
| 972 | if (!(desc.fFlags & kNoPathRendering_TextureFlag)) { |
| 973 | GrRenderTarget* rtSave = fCurrDrawState.fRenderTarget; |
| 974 | fCurrDrawState.fRenderTarget = rt; |
| 975 | eraseStencil(0, ~0); |
| 976 | fCurrDrawState.fRenderTarget = rtSave; |
| 977 | } |
| 978 | } |
| 979 | return tex; |
| 980 | } |
| 981 | |
| 982 | GrRenderTarget* GrGpuGL::defaultRenderTarget() { |
| 983 | return fDefaultRenderTarget; |
| 984 | } |
| 985 | |
| 986 | GrVertexBuffer* GrGpuGL::createVertexBuffer(uint32_t size, bool dynamic) { |
| 987 | GLuint id; |
| 988 | GR_GL(GenBuffers(1, &id)); |
| 989 | if (id) { |
| 990 | GR_GL(BindBuffer(GL_ARRAY_BUFFER, id)); |
| 991 | GrGLClearErr(); |
| 992 | // make sure driver can allocate memory for this buffer |
| 993 | GR_GL_NO_ERR(BufferData(GL_ARRAY_BUFFER, size, NULL, |
| 994 | dynamic ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW)); |
| 995 | if (glGetError() != GL_NO_ERROR) { |
| 996 | GR_GL(DeleteBuffers(1, &id)); |
| 997 | // deleting bound buffer does implicit bind to 0 |
| 998 | fHWGeometryState.fVertexBuffer = NULL; |
| 999 | return NULL; |
| 1000 | } |
| 1001 | GrGLVertexBuffer* vertexBuffer = new GrGLVertexBuffer(id, this, |
| 1002 | size, dynamic); |
| 1003 | fHWGeometryState.fVertexBuffer = vertexBuffer; |
| 1004 | return vertexBuffer; |
| 1005 | } |
| 1006 | return NULL; |
| 1007 | } |
| 1008 | |
| 1009 | GrIndexBuffer* GrGpuGL::createIndexBuffer(uint32_t size, bool dynamic) { |
| 1010 | GLuint id; |
| 1011 | GR_GL(GenBuffers(1, &id)); |
| 1012 | if (id) { |
| 1013 | GR_GL(BindBuffer(GL_ELEMENT_ARRAY_BUFFER, id)); |
| 1014 | GrGLClearErr(); |
| 1015 | // make sure driver can allocate memory for this buffer |
| 1016 | GR_GL_NO_ERR(BufferData(GL_ELEMENT_ARRAY_BUFFER, size, NULL, |
| 1017 | dynamic ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW)); |
| 1018 | if (glGetError() != GL_NO_ERROR) { |
| 1019 | GR_GL(DeleteBuffers(1, &id)); |
| 1020 | // deleting bound buffer does implicit bind to 0 |
| 1021 | fHWGeometryState.fIndexBuffer = NULL; |
| 1022 | return NULL; |
| 1023 | } |
| 1024 | GrIndexBuffer* indexBuffer = new GrGLIndexBuffer(id, this, |
| 1025 | size, dynamic); |
| 1026 | fHWGeometryState.fIndexBuffer = indexBuffer; |
| 1027 | return indexBuffer; |
| 1028 | } |
| 1029 | return NULL; |
| 1030 | } |
| 1031 | |
| 1032 | void GrGpuGL::setDefaultRenderTargetSize(uint32_t width, uint32_t height) { |
| 1033 | GrIRect viewport(0, height, width, 0); |
| 1034 | if (viewport != fDefaultRenderTarget->viewport()) { |
| 1035 | fDefaultRenderTarget->setViewport(viewport); |
| 1036 | if (fHWDrawState.fRenderTarget == fDefaultRenderTarget) { |
| 1037 | fHWDrawState.fRenderTarget = NULL; |
| 1038 | } |
| 1039 | } |
| 1040 | } |
| 1041 | |
| 1042 | void GrGpuGL::flushScissor(const GrIRect* rect) { |
| 1043 | GrAssert(NULL != fCurrDrawState.fRenderTarget); |
| 1044 | const GrIRect& vp = |
| 1045 | ((GrGLRenderTarget*)fCurrDrawState.fRenderTarget)->viewport(); |
| 1046 | |
| 1047 | if (NULL != rect && |
| 1048 | rect->contains(vp)) { |
| 1049 | rect = NULL; |
| 1050 | } |
| 1051 | |
| 1052 | if (NULL != rect) { |
| 1053 | GrIRect scissor; |
| 1054 | // viewport is already in GL coords |
| 1055 | // create a scissor in GL coords (top > bottom) |
| 1056 | scissor.setLTRB(vp.fLeft + rect->fLeft, |
| 1057 | vp.fTop - rect->fTop, |
| 1058 | vp.fLeft + rect->fRight, |
| 1059 | vp.fTop - rect->fBottom); |
| 1060 | |
| 1061 | if (fHWBounds.fScissorRect != scissor) { |
| 1062 | GR_GL(Scissor(scissor.fLeft, scissor.fBottom, |
| 1063 | scissor.width(), -scissor.height())); |
| 1064 | fHWBounds.fScissorRect = scissor; |
| 1065 | } |
| 1066 | |
| 1067 | if (!fHWBounds.fScissorEnabled) { |
| 1068 | GR_GL(Enable(GL_SCISSOR_TEST)); |
| 1069 | fHWBounds.fScissorEnabled = true; |
| 1070 | } |
| 1071 | } else { |
| 1072 | if (fHWBounds.fScissorEnabled) { |
| 1073 | GR_GL(Disable(GL_SCISSOR_TEST)); |
| 1074 | fHWBounds.fScissorEnabled = false; |
| 1075 | } |
| 1076 | } |
| 1077 | } |
| 1078 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1079 | void GrGpuGL::eraseColor(GrColor color) { |
| 1080 | flushRenderTarget(); |
| 1081 | if (fHWBounds.fScissorEnabled) { |
| 1082 | GR_GL(Disable(GL_SCISSOR_TEST)); |
| 1083 | } |
| 1084 | GR_GL(ColorMask(GL_TRUE,GL_TRUE,GL_TRUE,GL_TRUE)); |
| 1085 | GR_GL(ClearColor(GrColorUnpackR(color)/255.f, |
| 1086 | GrColorUnpackG(color)/255.f, |
| 1087 | GrColorUnpackB(color)/255.f, |
| 1088 | GrColorUnpackA(color)/255.f)); |
| 1089 | GR_GL(Clear(GL_COLOR_BUFFER_BIT)); |
| 1090 | fHWBounds.fScissorEnabled = false; |
| 1091 | fWriteMaskChanged = true; |
| 1092 | } |
| 1093 | |
| 1094 | void GrGpuGL::eraseStencil(uint32_t value, uint32_t mask) { |
| 1095 | flushRenderTarget(); |
| 1096 | if (fHWBounds.fScissorEnabled) { |
| 1097 | GR_GL(Disable(GL_SCISSOR_TEST)); |
| 1098 | } |
| 1099 | GR_GL(StencilMask(mask)); |
| 1100 | GR_GL(ClearStencil(value)); |
| 1101 | GR_GL(Clear(GL_STENCIL_BUFFER_BIT)); |
| 1102 | fHWBounds.fScissorEnabled = false; |
| 1103 | fWriteMaskChanged = true; |
| 1104 | } |
| 1105 | |
| 1106 | void GrGpuGL::eraseStencilClip() { |
| 1107 | GLint stencilBitCount; |
reed@google.com | ac20fb9 | 2011-01-12 17:14:53 +0000 | [diff] [blame] | 1108 | GR_GL_GetIntegerv(GL_STENCIL_BITS, &stencilBitCount); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1109 | GrAssert(stencilBitCount > 0); |
| 1110 | GLint clipStencilMask = (1 << (stencilBitCount - 1)); |
| 1111 | eraseStencil(0, clipStencilMask); |
| 1112 | } |
| 1113 | |
| 1114 | void GrGpuGL::forceRenderTargetFlush() { |
| 1115 | flushRenderTarget(); |
| 1116 | } |
| 1117 | |
| 1118 | bool GrGpuGL::readPixels(int left, int top, int width, int height, |
| 1119 | GrTexture::PixelConfig config, void* buffer) { |
| 1120 | GLenum internalFormat; // we don't use this for glReadPixels |
| 1121 | GLenum format; |
| 1122 | GLenum type; |
| 1123 | if (!this->canBeTexture(config, &internalFormat, &format, &type)) { |
| 1124 | return false; |
| 1125 | } |
| 1126 | |
| 1127 | GrAssert(NULL != fCurrDrawState.fRenderTarget); |
| 1128 | const GrIRect& vp = ((GrGLRenderTarget*)fCurrDrawState.fRenderTarget)->viewport(); |
| 1129 | |
| 1130 | // Brian says that viewport rects are already upside down (grrrrr) |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1131 | GR_GL(ReadPixels(left, -vp.height() - top - height, width, height, |
| 1132 | format, type, buffer)); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1133 | |
| 1134 | // now reverse the order of the rows, since GL's are bottom-to-top, but our |
| 1135 | // API presents top-to-bottom |
| 1136 | { |
| 1137 | size_t stride = width * GrTexture::BytesPerPixel(config); |
| 1138 | GrAutoMalloc rowStorage(stride); |
| 1139 | void* tmp = rowStorage.get(); |
| 1140 | |
| 1141 | const int halfY = height >> 1; |
| 1142 | char* top = reinterpret_cast<char*>(buffer); |
| 1143 | char* bottom = top + (height - 1) * stride; |
| 1144 | for (int y = 0; y < halfY; y++) { |
| 1145 | memcpy(tmp, top, stride); |
| 1146 | memcpy(top, bottom, stride); |
| 1147 | memcpy(bottom, tmp, stride); |
| 1148 | top += stride; |
| 1149 | bottom -= stride; |
| 1150 | } |
| 1151 | } |
| 1152 | return true; |
| 1153 | } |
| 1154 | |
| 1155 | void GrGpuGL::flushRenderTarget() { |
| 1156 | if (fHWDrawState.fRenderTarget != fCurrDrawState.fRenderTarget) { |
| 1157 | GrGLRenderTarget* rt = (GrGLRenderTarget*)fCurrDrawState.fRenderTarget; |
| 1158 | GR_GLEXT(fExts, BindFramebuffer(GR_FRAMEBUFFER, rt->renderFBOID())); |
| 1159 | #if GR_COLLECT_STATS |
| 1160 | ++fStats.fRenderTargetChngCnt; |
| 1161 | #endif |
| 1162 | rt->setDirty(true); |
| 1163 | #if GR_DEBUG |
| 1164 | GLenum status = GR_GLEXT(fExts, CheckFramebufferStatus(GR_FRAMEBUFFER)); |
| 1165 | if (status != GR_FRAMEBUFFER_COMPLETE) { |
| 1166 | GrPrintf("-- glCheckFramebufferStatus %x\n", status); |
| 1167 | } |
| 1168 | #endif |
| 1169 | fHWDrawState.fRenderTarget = fCurrDrawState.fRenderTarget; |
| 1170 | const GrIRect& vp = rt->viewport(); |
| 1171 | fRenderTargetChanged = true; |
| 1172 | if (fHWBounds.fViewportRect != vp) { |
| 1173 | GR_GL(Viewport(vp.fLeft, |
| 1174 | vp.fBottom, |
| 1175 | vp.width(), |
| 1176 | -vp.height())); |
| 1177 | fHWBounds.fViewportRect = vp; |
| 1178 | } |
| 1179 | } |
| 1180 | } |
| 1181 | |
| 1182 | GLenum gPrimitiveType2GLMode[] = { |
| 1183 | GL_TRIANGLES, |
| 1184 | GL_TRIANGLE_STRIP, |
| 1185 | GL_TRIANGLE_FAN, |
| 1186 | GL_POINTS, |
| 1187 | GL_LINES, |
| 1188 | GL_LINE_STRIP |
| 1189 | }; |
| 1190 | |
| 1191 | void GrGpuGL::drawIndexedHelper(PrimitiveType type, |
| 1192 | uint32_t startVertex, |
| 1193 | uint32_t startIndex, |
| 1194 | uint32_t vertexCount, |
| 1195 | uint32_t indexCount) { |
| 1196 | GrAssert((size_t)type < GR_ARRAY_COUNT(gPrimitiveType2GLMode)); |
| 1197 | |
| 1198 | GLvoid* indices = (GLvoid*)(sizeof(uint16_t) * startIndex); |
| 1199 | if (kReserved_GeometrySrcType == fGeometrySrc.fIndexSrc) { |
| 1200 | indices = (GLvoid*)((intptr_t)indices + (intptr_t)fIndices.get()); |
| 1201 | } else if (kArray_GeometrySrcType == fGeometrySrc.fIndexSrc) { |
| 1202 | indices = (GLvoid*)((intptr_t)indices + |
| 1203 | (intptr_t)fGeometrySrc.fIndexArray); |
| 1204 | } |
| 1205 | |
| 1206 | GR_GL(DrawElements(gPrimitiveType2GLMode[type], indexCount, |
| 1207 | GL_UNSIGNED_SHORT, indices)); |
| 1208 | } |
| 1209 | |
| 1210 | void GrGpuGL::drawNonIndexedHelper(PrimitiveType type, |
| 1211 | uint32_t startVertex, |
| 1212 | uint32_t vertexCount) { |
| 1213 | GrAssert((size_t)type < GR_ARRAY_COUNT(gPrimitiveType2GLMode)); |
| 1214 | |
| 1215 | GR_GL(DrawArrays(gPrimitiveType2GLMode[type], 0, vertexCount)); |
| 1216 | } |
| 1217 | |
| 1218 | #if !defined(SK_GL_HAS_COLOR4UB) |
| 1219 | static inline GrFixed byte2fixed(unsigned value) { |
| 1220 | return (value + (value >> 7)) << 8; |
| 1221 | } |
| 1222 | #endif |
| 1223 | |
| 1224 | void GrGpuGL::resolveTextureRenderTarget(GrGLTexture* texture) { |
| 1225 | GrGLRenderTarget* rt = (GrGLRenderTarget*) texture->asRenderTarget(); |
| 1226 | |
| 1227 | if (NULL != rt && rt->needsResolve()) { |
| 1228 | GrAssert(kNone_MSFBO != fMSFBOType); |
| 1229 | GrAssert(rt->textureFBOID() != rt->renderFBOID()); |
| 1230 | GR_GLEXT(fExts, BindFramebuffer(GR_READ_FRAMEBUFFER, |
| 1231 | rt->renderFBOID())); |
| 1232 | GR_GLEXT(fExts, BindFramebuffer(GR_DRAW_FRAMEBUFFER, |
| 1233 | rt->textureFBOID())); |
| 1234 | #if GR_COLLECT_STATS |
| 1235 | ++fStats.fRenderTargetChngCnt; |
| 1236 | #endif |
| 1237 | // make sure we go through set render target |
| 1238 | fHWDrawState.fRenderTarget = NULL; |
| 1239 | |
| 1240 | GLint left = 0; |
| 1241 | GLint right = texture->contentWidth(); |
| 1242 | // we will have rendered to the top of the FBO. |
| 1243 | GLint top = texture->allocHeight(); |
| 1244 | GLint bottom = texture->allocHeight() - texture->contentHeight(); |
| 1245 | if (kApple_MSFBO == fMSFBOType) { |
| 1246 | GR_GL(Enable(GL_SCISSOR_TEST)); |
| 1247 | GR_GL(Scissor(left, bottom, right-left, top-bottom)); |
| 1248 | GR_GLEXT(fExts, ResolveMultisampleFramebuffer()); |
| 1249 | fHWBounds.fScissorRect.setEmpty(); |
| 1250 | fHWBounds.fScissorEnabled = true; |
| 1251 | } else { |
| 1252 | GR_GLEXT(fExts, BlitFramebuffer(left, bottom, right, top, |
| 1253 | left, bottom, right, top, |
| 1254 | GL_COLOR_BUFFER_BIT, GL_NEAREST)); |
| 1255 | } |
| 1256 | rt->setDirty(false); |
| 1257 | |
| 1258 | } |
| 1259 | } |
| 1260 | |
| 1261 | void GrGpuGL::flushStencil() { |
| 1262 | |
| 1263 | // use stencil for clipping if clipping is enabled and the clip |
| 1264 | // has been written into the stencil. |
| 1265 | bool stencilClip = fClipState.fClipInStencil && |
| 1266 | (kClip_StateBit & fCurrDrawState.fFlagBits); |
| 1267 | bool stencilChange = |
| 1268 | fWriteMaskChanged || |
| 1269 | fHWStencilClip != stencilClip || |
| 1270 | fHWDrawState.fStencilPass != fCurrDrawState.fStencilPass || |
| 1271 | (kNone_StencilPass != fCurrDrawState.fStencilPass && |
| 1272 | (StencilPass)kSetClip_StencilPass != fCurrDrawState.fStencilPass && |
| 1273 | fHWDrawState.fReverseFill != fCurrDrawState.fReverseFill); |
| 1274 | |
| 1275 | if (stencilChange) { |
| 1276 | GLint stencilBitCount; |
| 1277 | GLint clipStencilMask; |
| 1278 | GLint pathStencilMask; |
reed@google.com | ac20fb9 | 2011-01-12 17:14:53 +0000 | [diff] [blame] | 1279 | GR_GL_GetIntegerv(GL_STENCIL_BITS, &stencilBitCount); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1280 | GrAssert(stencilBitCount > 0 || |
| 1281 | kNone_StencilPass == fCurrDrawState.fStencilPass); |
| 1282 | clipStencilMask = (1 << (stencilBitCount - 1)); |
| 1283 | pathStencilMask = clipStencilMask - 1; |
| 1284 | switch (fCurrDrawState.fStencilPass) { |
| 1285 | case kNone_StencilPass: |
| 1286 | if (stencilClip) { |
| 1287 | GR_GL(Enable(GL_STENCIL_TEST)); |
| 1288 | GR_GL(StencilFunc(GL_EQUAL, |
| 1289 | clipStencilMask, |
| 1290 | clipStencilMask)); |
| 1291 | GR_GL(StencilOp(GL_KEEP, GL_KEEP, GL_KEEP)); |
| 1292 | } else { |
| 1293 | GR_GL(Disable(GL_STENCIL_TEST)); |
| 1294 | } |
| 1295 | GR_GL(ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE)); |
| 1296 | if (!fSingleStencilPassForWinding) { |
| 1297 | GR_GL(Disable(GL_CULL_FACE)); |
| 1298 | } |
| 1299 | break; |
| 1300 | case kEvenOddStencil_StencilPass: |
| 1301 | GR_GL(Enable(GL_STENCIL_TEST)); |
| 1302 | if (stencilClip) { |
| 1303 | GR_GL(StencilFunc(GL_EQUAL, clipStencilMask, clipStencilMask)); |
| 1304 | } else { |
| 1305 | GR_GL(StencilFunc(GL_ALWAYS, 0x0, 0x0)); |
| 1306 | } |
| 1307 | GR_GL(StencilMask(pathStencilMask)); |
| 1308 | GR_GL(ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE)); |
| 1309 | GR_GL(StencilOp(GL_KEEP, GL_INVERT, GL_INVERT)); |
| 1310 | GR_GL(ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE)); |
| 1311 | if (!fSingleStencilPassForWinding) { |
| 1312 | GR_GL(Disable(GL_CULL_FACE)); |
| 1313 | } |
| 1314 | break; |
| 1315 | case kEvenOddColor_StencilPass: { |
| 1316 | GR_GL(Enable(GL_STENCIL_TEST)); |
| 1317 | GLint funcRef = 0; |
| 1318 | GLuint funcMask = pathStencilMask; |
| 1319 | if (stencilClip) { |
| 1320 | funcRef |= clipStencilMask; |
| 1321 | funcMask |= clipStencilMask; |
| 1322 | } |
| 1323 | if (!fCurrDrawState.fReverseFill) { |
| 1324 | funcRef |= pathStencilMask; |
| 1325 | } |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1326 | GR_GL(StencilFunc(GL_EQUAL, funcRef, funcMask)); |
| 1327 | GR_GL(StencilMask(pathStencilMask)); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1328 | GR_GL(StencilOp(GL_ZERO, GL_ZERO, GL_ZERO)); |
| 1329 | GR_GL(ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE)); |
| 1330 | if (!fSingleStencilPassForWinding) { |
| 1331 | GR_GL(Disable(GL_CULL_FACE)); |
| 1332 | } |
| 1333 | } break; |
| 1334 | case kWindingStencil1_StencilPass: |
| 1335 | GR_GL(Enable(GL_STENCIL_TEST)); |
| 1336 | if (fHasStencilWrap) { |
| 1337 | if (stencilClip) { |
| 1338 | GR_GL(StencilFunc(GL_EQUAL, |
| 1339 | clipStencilMask, |
| 1340 | clipStencilMask)); |
| 1341 | } else { |
| 1342 | GR_GL(StencilFunc(GL_ALWAYS, 0x0, 0x0)); |
| 1343 | } |
| 1344 | if (fSingleStencilPassForWinding) { |
| 1345 | GR_GL(StencilOpSeparate(GL_FRONT, GL_KEEP, |
| 1346 | GL_INCR_WRAP, GL_INCR_WRAP)); |
| 1347 | GR_GL(StencilOpSeparate(GL_BACK, GL_KEEP, |
| 1348 | GL_DECR_WRAP, GL_DECR_WRAP)); |
| 1349 | } else { |
| 1350 | GR_GL(StencilOp(GL_KEEP, GL_INCR_WRAP, GL_INCR_WRAP)); |
| 1351 | GR_GL(Enable(GL_CULL_FACE)); |
| 1352 | GR_GL(CullFace(GL_BACK)); |
| 1353 | } |
| 1354 | } else { |
| 1355 | // If we don't have wrap then we use the Func to detect |
| 1356 | // values that would wrap (0 on decr and mask on incr). We |
| 1357 | // make the func fail on these values and use the sfail op |
| 1358 | // to effectively wrap by inverting. |
| 1359 | // This applies whether we are doing a two-pass (front faces |
| 1360 | // followed by back faces) or a single pass (separate func/op) |
| 1361 | |
| 1362 | // Note that in the case where we are also using stencil to |
| 1363 | // clip this means we will write into the path bits in clipped |
| 1364 | // out pixels. We still apply the clip bit in the color pass |
| 1365 | // stencil func so we don't draw color outside the clip. |
| 1366 | // We also will clear the stencil bits in clipped pixels by |
| 1367 | // using zero in the sfail op with write mask set to the |
| 1368 | // path mask. |
| 1369 | GR_GL(Enable(GL_STENCIL_TEST)); |
| 1370 | if (fSingleStencilPassForWinding) { |
| 1371 | GR_GL(StencilFuncSeparate(GL_FRONT, |
| 1372 | GL_NOTEQUAL, |
| 1373 | pathStencilMask, |
| 1374 | pathStencilMask)); |
| 1375 | GR_GL(StencilFuncSeparate(GL_BACK, |
| 1376 | GL_NOTEQUAL, |
| 1377 | 0x0, |
| 1378 | pathStencilMask)); |
| 1379 | GR_GL(StencilOpSeparate(GL_FRONT, GL_INVERT, |
| 1380 | GL_INCR, GL_INCR)); |
| 1381 | GR_GL(StencilOpSeparate(GL_BACK, GL_INVERT, |
| 1382 | GL_DECR, GL_DECR)); |
| 1383 | } else { |
| 1384 | GR_GL(StencilFunc(GL_NOTEQUAL, |
| 1385 | pathStencilMask, |
| 1386 | pathStencilMask)); |
| 1387 | GR_GL(StencilOp(GL_INVERT, GL_INCR, GL_INCR)); |
| 1388 | GR_GL(Enable(GL_CULL_FACE)); |
| 1389 | GR_GL(CullFace(GL_BACK)); |
| 1390 | } |
| 1391 | } |
| 1392 | GR_GL(StencilMask(pathStencilMask)); |
| 1393 | GR_GL(ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE)); |
| 1394 | break; |
| 1395 | case kWindingStencil2_StencilPass: |
| 1396 | GrAssert(!fSingleStencilPassForWinding); |
| 1397 | GR_GL(Enable(GL_STENCIL_TEST)); |
| 1398 | if (fHasStencilWrap) { |
| 1399 | if (stencilClip) { |
| 1400 | GR_GL(StencilFunc(GL_EQUAL, |
| 1401 | clipStencilMask, |
| 1402 | clipStencilMask)); |
| 1403 | } else { |
| 1404 | GR_GL(StencilFunc(GL_ALWAYS, 0x0, 0x0)); |
| 1405 | } |
| 1406 | GR_GL(StencilOp(GL_DECR_WRAP, GL_DECR_WRAP, GL_DECR_WRAP)); |
| 1407 | } else { |
| 1408 | GR_GL(StencilFunc(GL_NOTEQUAL, 0x0, pathStencilMask)); |
| 1409 | GR_GL(StencilOp(GL_INVERT, GL_DECR, GL_DECR)); |
| 1410 | } |
| 1411 | GR_GL(StencilMask(pathStencilMask)); |
| 1412 | GR_GL(Enable(GL_CULL_FACE)); |
| 1413 | GR_GL(CullFace(GL_FRONT)); |
| 1414 | GR_GL(ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE)); |
| 1415 | break; |
| 1416 | case kWindingColor_StencilPass: { |
| 1417 | GR_GL(Enable(GL_STENCIL_TEST)); |
| 1418 | GLint funcRef = 0; |
| 1419 | GLuint funcMask = pathStencilMask; |
| 1420 | GLenum funcFunc; |
| 1421 | if (stencilClip) { |
| 1422 | funcRef |= clipStencilMask; |
| 1423 | funcMask |= clipStencilMask; |
| 1424 | } |
| 1425 | if (fCurrDrawState.fReverseFill) { |
| 1426 | funcFunc = GL_EQUAL; |
| 1427 | } else { |
| 1428 | funcFunc = GL_LESS; |
| 1429 | } |
| 1430 | GR_GL(StencilFunc(funcFunc, funcRef, funcMask)); |
| 1431 | GR_GL(StencilMask(pathStencilMask)); |
| 1432 | // must zero in sfail because winding w/o wrap will write |
| 1433 | // path stencil bits in clipped out pixels |
| 1434 | GR_GL(StencilOp(GL_ZERO, GL_ZERO, GL_ZERO)); |
| 1435 | GR_GL(ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE)); |
| 1436 | if (!fSingleStencilPassForWinding) { |
| 1437 | GR_GL(Disable(GL_CULL_FACE)); |
| 1438 | } |
| 1439 | } break; |
| 1440 | case kSetClip_StencilPass: |
| 1441 | GR_GL(Enable(GL_STENCIL_TEST)); |
| 1442 | GR_GL(StencilFunc(GL_ALWAYS, clipStencilMask, clipStencilMask)); |
| 1443 | GR_GL(StencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE)); |
| 1444 | GR_GL(StencilMask(clipStencilMask)); |
| 1445 | GR_GL(ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE)); |
| 1446 | if (!fSingleStencilPassForWinding) { |
| 1447 | GR_GL(Disable(GL_CULL_FACE)); |
| 1448 | } |
| 1449 | break; |
| 1450 | default: |
| 1451 | GrAssert(!"Unexpected stencil pass."); |
| 1452 | break; |
| 1453 | |
| 1454 | } |
| 1455 | fHWDrawState.fStencilPass = fCurrDrawState.fStencilPass; |
| 1456 | fHWDrawState.fReverseFill = fCurrDrawState.fReverseFill; |
| 1457 | fWriteMaskChanged = false; |
| 1458 | fHWStencilClip = stencilClip; |
| 1459 | } |
| 1460 | } |
| 1461 | |
| 1462 | void GrGpuGL::flushGLStateCommon(PrimitiveType type) { |
| 1463 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1464 | for (int s = 0; s < kNumStages; ++s) { |
| 1465 | bool usingTexture = VertexUsesStage(s, fGeometrySrc.fVertexLayout); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1466 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1467 | // bind texture and set sampler state |
| 1468 | if (usingTexture) { |
| 1469 | GrGLTexture* nextTexture = (GrGLTexture*)fCurrDrawState.fTextures[s]; |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1470 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1471 | if (NULL != nextTexture) { |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1472 | // if we created a rt/tex and rendered to it without using a |
| 1473 | // texture and now we're texuring from the rt it will still be |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1474 | // the last bound texture, but it needs resolving. So keep this |
| 1475 | // out of the "last != next" check. |
| 1476 | resolveTextureRenderTarget(nextTexture); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1477 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1478 | if (fHWDrawState.fTextures[s] != nextTexture) { |
| 1479 | setTextureUnit(s); |
| 1480 | GR_GL(BindTexture(GL_TEXTURE_2D, nextTexture->textureID())); |
| 1481 | #if GR_COLLECT_STATS |
| 1482 | ++fStats.fTextureChngCnt; |
| 1483 | #endif |
| 1484 | //GrPrintf("---- bindtexture %d\n", nextTexture->textureID()); |
| 1485 | fHWDrawState.fTextures[s] = nextTexture; |
| 1486 | } |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1487 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1488 | const GrSamplerState& sampler = fCurrDrawState.fSamplerStates[s]; |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1489 | const GrGLTexture::TexParams& oldTexParams = |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1490 | nextTexture->getTexParams(); |
| 1491 | GrGLTexture::TexParams newTexParams; |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1492 | |
| 1493 | newTexParams.fFilter = sampler.isFilter() ? GL_LINEAR : |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1494 | GL_NEAREST; |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1495 | newTexParams.fWrapS = |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1496 | GrGLTexture::gWrapMode2GLWrap[sampler.getWrapX()]; |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1497 | newTexParams.fWrapT = |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1498 | GrGLTexture::gWrapMode2GLWrap[sampler.getWrapY()]; |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1499 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1500 | if (newTexParams.fFilter != oldTexParams.fFilter) { |
| 1501 | setTextureUnit(s); |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1502 | GR_GL(TexParameteri(GL_TEXTURE_2D, |
| 1503 | GL_TEXTURE_MAG_FILTER, |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1504 | newTexParams.fFilter)); |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1505 | GR_GL(TexParameteri(GL_TEXTURE_2D, |
| 1506 | GL_TEXTURE_MIN_FILTER, |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1507 | newTexParams.fFilter)); |
| 1508 | } |
| 1509 | if (newTexParams.fWrapS != oldTexParams.fWrapS) { |
| 1510 | setTextureUnit(s); |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1511 | GR_GL(TexParameteri(GL_TEXTURE_2D, |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1512 | GL_TEXTURE_WRAP_S, |
| 1513 | newTexParams.fWrapS)); |
| 1514 | } |
| 1515 | if (newTexParams.fWrapT != oldTexParams.fWrapT) { |
| 1516 | setTextureUnit(s); |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1517 | GR_GL(TexParameteri(GL_TEXTURE_2D, |
| 1518 | GL_TEXTURE_WRAP_T, |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1519 | newTexParams.fWrapT)); |
| 1520 | } |
| 1521 | nextTexture->setTexParams(newTexParams); |
| 1522 | } else { |
| 1523 | GrAssert(!"Rendering with texture vert flag set but no texture"); |
| 1524 | if (NULL != fHWDrawState.fTextures[s]) { |
| 1525 | setTextureUnit(s); |
| 1526 | GR_GL(BindTexture(GL_TEXTURE_2D, 0)); |
| 1527 | // GrPrintf("---- bindtexture 0\n"); |
| 1528 | #if GR_COLLECT_STATS |
| 1529 | ++fStats.fTextureChngCnt; |
| 1530 | #endif |
| 1531 | fHWDrawState.fTextures[s] = NULL; |
| 1532 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1533 | } |
| 1534 | } |
| 1535 | } |
| 1536 | |
| 1537 | flushRenderTarget(); |
| 1538 | |
| 1539 | if ((fCurrDrawState.fFlagBits & kDither_StateBit) != |
| 1540 | (fHWDrawState.fFlagBits & kDither_StateBit)) { |
| 1541 | if (fCurrDrawState.fFlagBits & kDither_StateBit) { |
| 1542 | GR_GL(Enable(GL_DITHER)); |
| 1543 | } else { |
| 1544 | GR_GL(Disable(GL_DITHER)); |
| 1545 | } |
| 1546 | } |
| 1547 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1548 | #if GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1549 | // ES doesn't support toggling GL_MULTISAMPLE and doesn't have |
| 1550 | // smooth lines. |
| 1551 | if (fRenderTargetChanged || |
| 1552 | (fCurrDrawState.fFlagBits & kAntialias_StateBit) != |
| 1553 | (fHWDrawState.fFlagBits & kAntialias_StateBit)) { |
| 1554 | GLint msaa = 0; |
| 1555 | // only perform query if we know MSAA is supported. |
| 1556 | // calling on non-MSAA target caused a crash in one environment, |
| 1557 | // though I don't think it should. |
| 1558 | if (!fAASamples[kHigh_AALevel]) { |
reed@google.com | ac20fb9 | 2011-01-12 17:14:53 +0000 | [diff] [blame] | 1559 | GR_GL_GetIntegerv(GL_SAMPLE_BUFFERS, &msaa); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1560 | } |
| 1561 | if (fCurrDrawState.fFlagBits & kAntialias_StateBit) { |
| 1562 | if (msaa) { |
| 1563 | GR_GL(Enable(GL_MULTISAMPLE)); |
| 1564 | } else { |
| 1565 | GR_GL(Enable(GL_LINE_SMOOTH)); |
| 1566 | } |
| 1567 | } else { |
| 1568 | if (msaa) { |
| 1569 | GR_GL(Disable(GL_MULTISAMPLE)); |
| 1570 | } |
| 1571 | GR_GL(Disable(GL_LINE_SMOOTH)); |
| 1572 | } |
| 1573 | } |
| 1574 | #endif |
| 1575 | |
| 1576 | bool blendOff = canDisableBlend(); |
| 1577 | if (fHWBlendDisabled != blendOff) { |
| 1578 | if (blendOff) { |
| 1579 | GR_GL(Disable(GL_BLEND)); |
| 1580 | } else { |
| 1581 | GR_GL(Enable(GL_BLEND)); |
| 1582 | } |
| 1583 | fHWBlendDisabled = blendOff; |
| 1584 | } |
| 1585 | |
| 1586 | if (!blendOff) { |
| 1587 | if (fHWDrawState.fSrcBlend != fCurrDrawState.fSrcBlend || |
| 1588 | fHWDrawState.fDstBlend != fCurrDrawState.fDstBlend) { |
| 1589 | GR_GL(BlendFunc(gXfermodeCoeff2Blend[fCurrDrawState.fSrcBlend], |
| 1590 | gXfermodeCoeff2Blend[fCurrDrawState.fDstBlend])); |
| 1591 | fHWDrawState.fSrcBlend = fCurrDrawState.fSrcBlend; |
| 1592 | fHWDrawState.fDstBlend = fCurrDrawState.fDstBlend; |
| 1593 | } |
| 1594 | } |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1595 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1596 | #if GR_DEBUG |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1597 | // check for circular rendering |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1598 | for (int s = 0; s < kNumStages; ++s) { |
| 1599 | GrAssert(!VertexUsesStage(s, fGeometrySrc.fVertexLayout) || |
| 1600 | NULL == fCurrDrawState.fRenderTarget || |
| 1601 | NULL == fCurrDrawState.fTextures[s] || |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1602 | fCurrDrawState.fTextures[s]->asRenderTarget() != |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1603 | fCurrDrawState.fRenderTarget); |
| 1604 | } |
| 1605 | #endif |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1606 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1607 | flushStencil(); |
| 1608 | |
| 1609 | fHWDrawState.fFlagBits = fCurrDrawState.fFlagBits; |
| 1610 | } |
| 1611 | |
| 1612 | void GrGpuGL::notifyVertexBufferBind(const GrGLVertexBuffer* buffer) { |
| 1613 | fHWGeometryState.fVertexBuffer = buffer; |
| 1614 | } |
| 1615 | |
| 1616 | void GrGpuGL::notifyVertexBufferDelete(const GrGLVertexBuffer* buffer) { |
| 1617 | GrAssert(!(kBuffer_GeometrySrcType == fGeometrySrc.fVertexSrc && |
| 1618 | buffer == fGeometrySrc.fVertexBuffer)); |
| 1619 | |
| 1620 | if (fHWGeometryState.fVertexBuffer == buffer) { |
| 1621 | // deleting bound buffer does implied bind to 0 |
| 1622 | fHWGeometryState.fVertexBuffer = NULL; |
| 1623 | } |
| 1624 | } |
| 1625 | |
| 1626 | void GrGpuGL::notifyIndexBufferBind(const GrGLIndexBuffer* buffer) { |
| 1627 | fGeometrySrc.fIndexBuffer = buffer; |
| 1628 | } |
| 1629 | |
| 1630 | void GrGpuGL::notifyIndexBufferDelete(const GrGLIndexBuffer* buffer) { |
| 1631 | GrAssert(!(kBuffer_GeometrySrcType == fGeometrySrc.fIndexSrc && |
| 1632 | buffer == fGeometrySrc.fIndexBuffer)); |
| 1633 | |
| 1634 | if (fHWGeometryState.fIndexBuffer == buffer) { |
| 1635 | // deleting bound buffer does implied bind to 0 |
| 1636 | fHWGeometryState.fIndexBuffer = NULL; |
| 1637 | } |
| 1638 | } |
| 1639 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1640 | void GrGpuGL::notifyRenderTargetDelete(GrRenderTarget* renderTarget) { |
| 1641 | GrAssert(NULL != renderTarget); |
| 1642 | |
| 1643 | // if the bound FBO is destroyed we can't rely on the implicit bind to 0 |
| 1644 | // a) we want the default RT which may not be FBO 0 |
| 1645 | // b) we set more state than just FBO based on the RT |
| 1646 | // So trash the HW state to force an RT flush next time |
| 1647 | if (fCurrDrawState.fRenderTarget == renderTarget) { |
reed@google.com | 1fcd51e | 2011-01-05 15:50:27 +0000 | [diff] [blame] | 1648 | fCurrDrawState.fRenderTarget = fDefaultRenderTarget; |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1649 | } |
| 1650 | if (fHWDrawState.fRenderTarget == renderTarget) { |
| 1651 | fHWDrawState.fRenderTarget = NULL; |
| 1652 | } |
| 1653 | if (fClipState.fStencilClipTarget == renderTarget) { |
| 1654 | fClipState.fStencilClipTarget = NULL; |
| 1655 | } |
| 1656 | } |
| 1657 | |
| 1658 | void GrGpuGL::notifyTextureDelete(GrGLTexture* texture) { |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1659 | for (int s = 0; s < kNumStages; ++s) { |
| 1660 | if (fCurrDrawState.fTextures[s] == texture) { |
| 1661 | fCurrDrawState.fTextures[s] = NULL; |
| 1662 | } |
| 1663 | if (fHWDrawState.fTextures[s] == texture) { |
| 1664 | // deleting bound texture does implied bind to 0 |
| 1665 | fHWDrawState.fTextures[s] = NULL; |
| 1666 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1667 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1668 | } |
| 1669 | |
| 1670 | void GrGpuGL::notifyTextureRemoveRenderTarget(GrGLTexture* texture) { |
| 1671 | GrAssert(NULL != texture->asRenderTarget()); |
| 1672 | |
| 1673 | // if there is a pending resolve, perform it. |
| 1674 | resolveTextureRenderTarget(texture); |
| 1675 | } |
| 1676 | |
| 1677 | bool GrGpuGL::canBeTexture(GrTexture::PixelConfig config, |
| 1678 | GLenum* internalFormat, |
| 1679 | GLenum* format, |
| 1680 | GLenum* type) { |
| 1681 | switch (config) { |
| 1682 | case GrTexture::kRGBA_8888_PixelConfig: |
| 1683 | case GrTexture::kRGBX_8888_PixelConfig: // todo: can we tell it our X? |
bsalomon@google.com | 2fbc7fa | 2011-01-05 16:34:41 +0000 | [diff] [blame] | 1684 | *format = GR_GL_32BPP_COLOR_FORMAT; |
bsalomon@google.com | ed3a068 | 2011-01-18 16:54:04 +0000 | [diff] [blame] | 1685 | #if GR_SUPPORT_GLES
|
| 1686 | // according to GL_EXT_texture_format_BGRA8888 the *internal*
|
| 1687 | // format for a BGRA is BGRA not RGBA (as on desktop)
|
| 1688 | *internalFormat = GR_GL_32BPP_COLOR_FORMAT;
|
| 1689 | #else
|
| 1690 | *internalFormat = GL_RGBA;
|
| 1691 | #endif |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1692 | *type = GL_UNSIGNED_BYTE; |
| 1693 | break; |
| 1694 | case GrTexture::kRGB_565_PixelConfig: |
| 1695 | *format = GL_RGB; |
| 1696 | *internalFormat = GL_RGB; |
| 1697 | *type = GL_UNSIGNED_SHORT_5_6_5; |
| 1698 | break; |
| 1699 | case GrTexture::kRGBA_4444_PixelConfig: |
| 1700 | *format = GL_RGBA; |
| 1701 | *internalFormat = GL_RGBA; |
| 1702 | *type = GL_UNSIGNED_SHORT_4_4_4_4; |
| 1703 | break; |
| 1704 | case GrTexture::kIndex_8_PixelConfig: |
| 1705 | if (this->supports8BitPalette()) { |
| 1706 | *format = GR_PALETTE8_RGBA8; |
| 1707 | *internalFormat = GR_PALETTE8_RGBA8; |
| 1708 | *type = GL_UNSIGNED_BYTE; // unused I think |
| 1709 | } else { |
| 1710 | return false; |
| 1711 | } |
| 1712 | break; |
| 1713 | case GrTexture::kAlpha_8_PixelConfig: |
| 1714 | *format = GL_ALPHA; |
| 1715 | *internalFormat = GL_ALPHA; |
| 1716 | *type = GL_UNSIGNED_BYTE; |
| 1717 | break; |
| 1718 | default: |
| 1719 | return false; |
| 1720 | } |
| 1721 | return true; |
| 1722 | } |
| 1723 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1724 | void GrGpuGL::setTextureUnit(int unit) { |
| 1725 | GrAssert(unit >= 0 && unit < kNumStages); |
| 1726 | if (fActiveTextureUnitIdx != unit) { |
| 1727 | GR_GL(ActiveTexture(GL_TEXTURE0 + unit)); |
| 1728 | fActiveTextureUnitIdx = unit; |
| 1729 | } |
| 1730 | } |
bsalomon@google.com | 316f9923 | 2011-01-13 21:28:12 +0000 | [diff] [blame] | 1731 | |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1732 | void GrGpuGL::setSpareTextureUnit() { |
| 1733 | if (fActiveTextureUnitIdx != (GL_TEXTURE0 + SPARE_TEX_UNIT)) { |
| 1734 | GR_GL(ActiveTexture(GL_TEXTURE0 + SPARE_TEX_UNIT)); |
| 1735 | fActiveTextureUnitIdx = SPARE_TEX_UNIT; |
| 1736 | } |
| 1737 | } |
| 1738 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1739 | /* On ES the internalFormat and format must match for TexImage and we use |
| 1740 | GL_RGB, GL_RGBA for color formats. We also generally like having the driver |
| 1741 | decide the internalFormat. However, on ES internalFormat for |
| 1742 | RenderBufferStorage* has to be a specific format (not a base format like |
| 1743 | GL_RGBA). |
| 1744 | */ |
| 1745 | bool GrGpuGL::fboInternalFormat(GrTexture::PixelConfig config, GLenum* format) { |
| 1746 | switch (config) { |
| 1747 | case GrTexture::kRGBA_8888_PixelConfig: |
| 1748 | case GrTexture::kRGBX_8888_PixelConfig: |
| 1749 | if (fRGBA8Renderbuffer) { |
| 1750 | *format = GR_RGBA8; |
| 1751 | return true; |
| 1752 | } else { |
| 1753 | return false; |
| 1754 | } |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1755 | #if GR_SUPPORT_GLES // ES2 supports 565. ES1 supports it with FBO extension |
| 1756 | // desktop GL has no such internal format |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1757 | case GrTexture::kRGB_565_PixelConfig: |
| 1758 | *format = GR_RGB565; |
| 1759 | return true; |
| 1760 | #endif |
| 1761 | case GrTexture::kRGBA_4444_PixelConfig: |
| 1762 | *format = GL_RGBA4; |
| 1763 | return true; |
| 1764 | default: |
| 1765 | return false; |
| 1766 | } |
| 1767 | } |
| 1768 | |
| 1769 | /////////////////////////////////////////////////////////////////////////////// |
| 1770 | |
| 1771 | void GrGLCheckErr(const char* location, const char* call) { |
| 1772 | uint32_t err = glGetError(); |
| 1773 | if (GL_NO_ERROR != err) { |
| 1774 | GrPrintf("---- glGetError %x", err); |
| 1775 | if (NULL != location) { |
| 1776 | GrPrintf(" at\n\t%s", location); |
| 1777 | } |
| 1778 | if (NULL != call) { |
| 1779 | GrPrintf("\n\t\t%s", call); |
| 1780 | } |
| 1781 | GrPrintf("\n"); |
| 1782 | } |
| 1783 | } |
| 1784 | |
| 1785 | /////////////////////////////////////////////////////////////////////////////// |
| 1786 | |
| 1787 | typedef void (*glProc)(void); |
| 1788 | |
| 1789 | void get_gl_proc(const char procName[], glProc *address) { |
| 1790 | #if GR_WIN32_BUILD |
bsalomon@google.com | 2fbc7fa | 2011-01-05 16:34:41 +0000 | [diff] [blame] | 1791 | *address = (glProc)wglGetProcAddress(procName); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1792 | GrAssert(NULL != *address); |
| 1793 | #elif GR_MAC_BUILD || GR_IOS_BUILD |
| 1794 | GrAssert(!"Extensions don't need to be initialized!"); |
| 1795 | #elif GR_ANDROID_BUILD |
| 1796 | *address = eglGetProcAddress(procName); |
| 1797 | GrAssert(NULL != *address); |
| 1798 | #elif GR_LINUX_BUILD |
reed@google.com | 37df17d | 2010-12-23 20:20:51 +0000 | [diff] [blame] | 1799 | // GR_STATIC_ASSERT(!"Add environment-dependent implementation here"); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1800 | //*address = glXGetProcAddressARB(procName); |
reed@google.com | 37df17d | 2010-12-23 20:20:51 +0000 | [diff] [blame] | 1801 | *address = NULL;//eglGetProcAddress(procName); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1802 | #elif GR_QNX_BUILD |
| 1803 | *address = eglGetProcAddress(procName); |
| 1804 | GrAssert(NULL != *address); |
| 1805 | #else |
| 1806 | // hopefully we're on a system with EGL |
| 1807 | *address = eglGetProcAddress(procName); |
| 1808 | GrAssert(NULL != *address); |
| 1809 | #endif |
| 1810 | } |
| 1811 | |
| 1812 | #define GET_PROC(EXT_STRUCT, PROC_NAME, EXT_TAG) \ |
| 1813 | get_gl_proc("gl" #PROC_NAME #EXT_TAG, (glProc*)&EXT_STRUCT-> PROC_NAME); |
| 1814 | |
| 1815 | extern void GrGLInitExtensions(GrGLExts* exts) { |
| 1816 | exts->GenFramebuffers = NULL; |
| 1817 | exts->BindFramebuffer = NULL; |
| 1818 | exts->FramebufferTexture2D = NULL; |
| 1819 | exts->CheckFramebufferStatus = NULL; |
| 1820 | exts->DeleteFramebuffers = NULL; |
| 1821 | exts->RenderbufferStorage = NULL; |
| 1822 | exts->GenRenderbuffers = NULL; |
| 1823 | exts->DeleteRenderbuffers = NULL; |
| 1824 | exts->FramebufferRenderbuffer = NULL; |
| 1825 | exts->BindRenderbuffer = NULL; |
| 1826 | exts->RenderbufferStorageMultisample = NULL; |
| 1827 | exts->BlitFramebuffer = NULL; |
| 1828 | exts->ResolveMultisampleFramebuffer = NULL; |
| 1829 | exts->FramebufferTexture2DMultisample = NULL; |
| 1830 | exts->MapBuffer = NULL; |
| 1831 | exts->UnmapBuffer = NULL; |
| 1832 | |
| 1833 | #if GR_MAC_BUILD |
| 1834 | exts->GenFramebuffers = glGenFramebuffers; |
| 1835 | exts->BindFramebuffer = glBindFramebuffer; |
| 1836 | exts->FramebufferTexture2D = glFramebufferTexture2D; |
| 1837 | exts->CheckFramebufferStatus = glCheckFramebufferStatus; |
| 1838 | exts->DeleteFramebuffers = glDeleteFramebuffers; |
| 1839 | exts->RenderbufferStorage = glRenderbufferStorage; |
| 1840 | exts->GenRenderbuffers = glGenRenderbuffers; |
| 1841 | exts->DeleteRenderbuffers = glDeleteRenderbuffers; |
| 1842 | exts->FramebufferRenderbuffer = glFramebufferRenderbuffer; |
| 1843 | exts->BindRenderbuffer = glBindRenderbuffer; |
| 1844 | exts->RenderbufferStorageMultisample = glRenderbufferStorageMultisample; |
| 1845 | exts->BlitFramebuffer = glBlitFramebuffer; |
| 1846 | exts->MapBuffer = glMapBuffer; |
| 1847 | exts->UnmapBuffer = glUnmapBuffer; |
| 1848 | #elif GR_IOS_BUILD |
| 1849 | exts->GenFramebuffers = glGenFramebuffers; |
| 1850 | exts->BindFramebuffer = glBindFramebuffer; |
| 1851 | exts->FramebufferTexture2D = glFramebufferTexture2D; |
| 1852 | exts->CheckFramebufferStatus = glCheckFramebufferStatus; |
| 1853 | exts->DeleteFramebuffers = glDeleteFramebuffers; |
| 1854 | exts->RenderbufferStorage = glRenderbufferStorage; |
| 1855 | exts->GenRenderbuffers = glGenRenderbuffers; |
| 1856 | exts->DeleteRenderbuffers = glDeleteRenderbuffers; |
| 1857 | exts->FramebufferRenderbuffer = glFramebufferRenderbuffer; |
| 1858 | exts->BindRenderbuffer = glBindRenderbuffer; |
| 1859 | exts->RenderbufferStorageMultisample = glRenderbufferStorageMultisampleAPPLE; |
| 1860 | exts->ResolveMultisampleFramebuffer = glResolveMultisampleFramebufferAPPLE; |
| 1861 | exts->MapBuffer = glMapBufferOES; |
| 1862 | exts->UnmapBuffer = glUnmapBufferOES; |
| 1863 | #else |
| 1864 | GLint major, minor; |
| 1865 | gl_version(&major, &minor); |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1866 | #if GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1867 | if (major >= 3) {// FBO, FBOMS, and FBOBLIT part of 3.0 |
| 1868 | exts->GenFramebuffers = glGenFramebuffers; |
| 1869 | exts->BindFramebuffer = glBindFramebuffer; |
| 1870 | exts->FramebufferTexture2D = glFramebufferTexture2D; |
| 1871 | exts->CheckFramebufferStatus = glCheckFramebufferStatus; |
| 1872 | exts->DeleteFramebuffers = glDeleteFramebuffers; |
| 1873 | exts->RenderbufferStorage = glRenderbufferStorage; |
| 1874 | exts->GenRenderbuffers = glGenRenderbuffers; |
| 1875 | exts->DeleteRenderbuffers = glDeleteRenderbuffers; |
| 1876 | exts->FramebufferRenderbuffer = glFramebufferRenderbuffer; |
| 1877 | exts->BindRenderbuffer = glBindRenderbuffer; |
| 1878 | exts->RenderbufferStorageMultisample = glRenderbufferStorageMultisample; |
| 1879 | exts->BlitFramebuffer = glBlitFramebuffer; |
| 1880 | } else if (has_gl_extension("GL_ARB_framebuffer_object")) { |
| 1881 | GET_PROC(exts, GenFramebuffers, ARB); |
| 1882 | GET_PROC(exts, BindFramebuffer, ARB); |
| 1883 | GET_PROC(exts, FramebufferTexture2D, ARB); |
| 1884 | GET_PROC(exts, CheckFramebufferStatus, ARB); |
| 1885 | GET_PROC(exts, DeleteFramebuffers, ARB); |
| 1886 | GET_PROC(exts, RenderbufferStorage, ARB); |
| 1887 | GET_PROC(exts, GenRenderbuffers, ARB); |
| 1888 | GET_PROC(exts, DeleteRenderbuffers, ARB); |
| 1889 | GET_PROC(exts, FramebufferRenderbuffer, ARB); |
| 1890 | GET_PROC(exts, BindRenderbuffer, ARB); |
| 1891 | GET_PROC(exts, RenderbufferStorageMultisample, ARB); |
| 1892 | GET_PROC(exts, BlitFramebuffer, ARB); |
| 1893 | } else { |
| 1894 | // we require some form of FBO |
| 1895 | GrAssert(has_gl_extension("GL_EXT_framebuffer_object")); |
| 1896 | GET_PROC(exts, GenFramebuffers, EXT); |
| 1897 | GET_PROC(exts, BindFramebuffer, EXT); |
| 1898 | GET_PROC(exts, FramebufferTexture2D, EXT); |
| 1899 | GET_PROC(exts, CheckFramebufferStatus, EXT); |
| 1900 | GET_PROC(exts, DeleteFramebuffers, EXT); |
| 1901 | GET_PROC(exts, RenderbufferStorage, EXT); |
| 1902 | GET_PROC(exts, GenRenderbuffers, EXT); |
| 1903 | GET_PROC(exts, DeleteRenderbuffers, EXT); |
| 1904 | GET_PROC(exts, FramebufferRenderbuffer, EXT); |
| 1905 | GET_PROC(exts, BindRenderbuffer, EXT); |
| 1906 | if (has_gl_extension("GL_EXT_framebuffer_multisample")) { |
| 1907 | GET_PROC(exts, RenderbufferStorageMultisample, EXT); |
| 1908 | } |
| 1909 | if (has_gl_extension("GL_EXT_framebuffer_blit")) { |
| 1910 | GET_PROC(exts, BlitFramebuffer, EXT); |
| 1911 | } |
| 1912 | } |
| 1913 | // we assume we have at least GL 1.5 or higher (VBOs introduced in 1.5) |
| 1914 | exts->MapBuffer = glMapBuffer; |
| 1915 | exts->UnmapBuffer = glUnmapBuffer; |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1916 | #else // !GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1917 | if (major >= 2) {// ES 2.0 supports FBO |
| 1918 | exts->GenFramebuffers = glGenFramebuffers; |
| 1919 | exts->BindFramebuffer = glBindFramebuffer; |
| 1920 | exts->FramebufferTexture2D = glFramebufferTexture2D; |
| 1921 | exts->CheckFramebufferStatus = glCheckFramebufferStatus; |
| 1922 | exts->DeleteFramebuffers = glDeleteFramebuffers; |
| 1923 | exts->RenderbufferStorage = glRenderbufferStorage; |
| 1924 | exts->GenRenderbuffers = glGenRenderbuffers; |
| 1925 | exts->DeleteRenderbuffers = glDeleteRenderbuffers; |
| 1926 | exts->FramebufferRenderbuffer = glFramebufferRenderbuffer; |
| 1927 | exts->BindRenderbuffer = glBindRenderbuffer; |
| 1928 | } else { |
| 1929 | // we require some form of FBO |
| 1930 | GrAssert(has_gl_extension("GL_OES_framebuffer_object")); |
| 1931 | |
| 1932 | GET_PROC(exts, GenFramebuffers, OES); |
| 1933 | GET_PROC(exts, BindFramebuffer, OES); |
| 1934 | GET_PROC(exts, FramebufferTexture2D, OES); |
| 1935 | GET_PROC(exts, CheckFramebufferStatus, OES); |
| 1936 | GET_PROC(exts, DeleteFramebuffers, OES); |
| 1937 | GET_PROC(exts, RenderbufferStorage, OES); |
| 1938 | GET_PROC(exts, GenRenderbuffers, OES); |
| 1939 | GET_PROC(exts, DeleteRenderbuffers, OES); |
| 1940 | GET_PROC(exts, FramebufferRenderbuffer, OES); |
| 1941 | GET_PROC(exts, BindRenderbuffer, OES); |
| 1942 | } |
| 1943 | if (has_gl_extension("GL_APPLE_framebuffer_multisample")) { |
| 1944 | GET_PROC(exts, ResolveMultisampleFramebuffer, APPLE); |
| 1945 | } |
| 1946 | if (has_gl_extension("GL_IMG_multisampled_render_to_texture")) { |
| 1947 | GET_PROC(exts, FramebufferTexture2DMultisample, IMG); |
| 1948 | } |
| 1949 | if (has_gl_extension("GL_OES_mapbuffer")) { |
| 1950 | GET_PROC(exts, MapBuffer, OES); |
| 1951 | GET_PROC(exts, UnmapBuffer, OES); |
| 1952 | } |
bsalomon@google.com | 8531c1c | 2011-01-13 19:52:45 +0000 | [diff] [blame] | 1953 | #endif // !GR_SUPPORT_GLDESKTOP |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1954 | #endif // BUILD |
| 1955 | } |
| 1956 | |
| 1957 | bool gPrintGL = true; |
| 1958 | |