Add all ES2 glUniform functions to GrGLInterface. Add interface validation for fixed pipe or shader pipe use.
Review URL: http://codereview.appspot.com/4435082/
git-svn-id: http://skia.googlecode.com/svn/trunk@1234 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/src/GrGLInterface.cpp b/gpu/src/GrGLInterface.cpp
index 5dfc03c..319d33f 100644
--- a/gpu/src/GrGLInterface.cpp
+++ b/gpu/src/GrGLInterface.cpp
@@ -93,3 +93,246 @@
GrGLGetGLInterface()->fGetString(GR_GL_VERSION));
gl_version_from_string(major, minor, v);
}
+
+bool GrGLInterface::validateShaderFunctions() const {
+ // required for GrGpuGLShaders
+ if (NULL == fAttachShader ||
+ NULL == fBindAttribLocation ||
+ NULL == fCompileShader ||
+ NULL == fCreateProgram ||
+ NULL == fCreateShader ||
+ NULL == fDeleteProgram ||
+ NULL == fDeleteShader ||
+ NULL == fDisableVertexAttribArray ||
+ NULL == fEnableVertexAttribArray ||
+ NULL == fGetProgramInfoLog ||
+ NULL == fGetProgramiv ||
+ NULL == fGetShaderInfoLog ||
+ NULL == fGetShaderiv ||
+ NULL == fGetUniformLocation ||
+ NULL == fLinkProgram ||
+ NULL == fShaderSource ||
+ NULL == fUniform1f ||
+ NULL == fUniform1i ||
+ NULL == fUniform1fv ||
+ NULL == fUniform1iv ||
+ NULL == fUniform2f ||
+ NULL == fUniform2i ||
+ NULL == fUniform2fv ||
+ NULL == fUniform2iv ||
+ NULL == fUniform3f ||
+ NULL == fUniform3i ||
+ NULL == fUniform3fv ||
+ NULL == fUniform3iv ||
+ NULL == fUniform4f ||
+ NULL == fUniform4i ||
+ NULL == fUniform4fv ||
+ NULL == fUniform4iv ||
+ NULL == fUniformMatrix2fv ||
+ NULL == fUniformMatrix3fv ||
+ NULL == fUniformMatrix4fv ||
+ NULL == fUseProgram ||
+ NULL == fVertexAttrib4fv ||
+ NULL == fVertexAttribPointer) {
+ return false;
+ }
+ return true;
+}
+
+bool GrGLInterface::validateFixedFunctions() const {
+ if (NULL == fClientActiveTexture ||
+ NULL == fColor4ub ||
+ NULL == fColorPointer ||
+ NULL == fDisableClientState ||
+ NULL == fEnableClientState ||
+ NULL == fLoadMatrixf ||
+ NULL == fMatrixMode ||
+ NULL == fPointSize ||
+ NULL == fShadeModel ||
+ NULL == fTexCoordPointer ||
+ NULL == fVertexPointer) {
+ return false;
+ }
+ return true;
+}
+
+bool GrGLInterface::validate(GrEngine engine) const {
+
+ bool isDesktop = kDesktop_GrGLBinding == fBindingsExported;
+
+ // ES1 and 2 can be supported in the same interface
+ bool isES = ((kES1_GrGLBinding | kES2_GrGLBinding) & fBindingsExported &&
+ !(~(kES1_GrGLBinding | kES2_GrGLBinding) & fBindingsExported));
+
+ if (!isDesktop && !isES) {
+ return false;
+ }
+
+ // functions that are always required
+ if (NULL == fActiveTexture ||
+ NULL == fBindBuffer ||
+ NULL == fBindTexture ||
+ NULL == fBlendFunc ||
+ NULL == fBufferData ||
+ NULL == fBufferSubData ||
+ NULL == fClear ||
+ NULL == fClearColor ||
+ NULL == fClearStencil ||
+ NULL == fColorMask ||
+ NULL == fCullFace ||
+ NULL == fDeleteBuffers ||
+ NULL == fDeleteTextures ||
+ NULL == fDepthMask ||
+ NULL == fDisable ||
+ NULL == fDrawArrays ||
+ NULL == fDrawElements ||
+ NULL == fEnable ||
+ NULL == fFrontFace ||
+ NULL == fGenBuffers ||
+ NULL == fGenTextures ||
+ NULL == fGetBufferParameteriv ||
+ NULL == fGetError ||
+ NULL == fGetIntegerv ||
+ NULL == fGetString ||
+ NULL == fPixelStorei ||
+ NULL == fReadPixels ||
+ NULL == fScissor ||
+ NULL == fStencilFunc ||
+ NULL == fStencilMask ||
+ NULL == fStencilOp ||
+ NULL == fTexEnvi ||
+ NULL == fTexImage2D ||
+ NULL == fTexParameteri ||
+ NULL == fTexSubImage2D ||
+ NULL == fViewport ||
+ NULL == fBindFramebuffer ||
+ NULL == fBindRenderbuffer ||
+ NULL == fCheckFramebufferStatus ||
+ NULL == fDeleteFramebuffers ||
+ NULL == fDeleteRenderbuffers ||
+ NULL == fFramebufferRenderbuffer ||
+ NULL == fFramebufferTexture2D ||
+ NULL == fGenFramebuffers ||
+ NULL == fGenRenderbuffers ||
+ NULL == fRenderbufferStorage) {
+ return false;
+ }
+
+ switch (engine) {
+ case kOpenGL_Shaders_GrEngine:
+ if (kES1_GrGLBinding == fBindingsExported) {
+ return false;
+ }
+ if (!this->validateShaderFunctions()) {
+ return false;
+ }
+ break;
+ case kOpenGL_Fixed_GrEngine:
+ if (kES1_GrGLBinding == fBindingsExported) {
+ return false;
+ }
+ if (!this->validateFixedFunctions()) {
+ return false;
+ }
+ break;
+ default:
+ return false;
+ }
+
+ int major, minor;
+ const char* ext;
+
+ gl_version(&major, &minor);
+ ext = (const char*)fGetString(GR_GL_EXTENSIONS);
+
+ // Now check that baseline ES/Desktop fns not covered above are present
+ // and that we have fn pointers for any advertised extensions that we will
+ // try to use.
+
+ // these functions are part of ES2, we assume they are available
+ // On the desktop we assume they are available if the extension
+ // is present or GL version is high enough.
+ if ((kES2_GrGLBinding & fBindingsExported)) {
+ if (NULL == fBlendColor ||
+ NULL == fStencilFuncSeparate ||
+ NULL == fStencilMaskSeparate ||
+ NULL == fStencilOpSeparate) {
+ return false;
+ }
+ } else if (kDesktop_GrGLBinding == fBindingsExported) {
+ if (major >= 2) {
+ if (NULL == fStencilFuncSeparate ||
+ NULL == fStencilMaskSeparate ||
+ NULL == fStencilOpSeparate) {
+ return false;
+ }
+ }
+ if (1 < major || (1 == major && 4 <= minor) ||
+ has_gl_extension_from_string("GL_EXT_blend_color", ext)) {
+ if (NULL == fBlendColor) {
+ return false;
+ }
+ }
+ }
+
+ // optional function on desktop before 1.3
+ if (kDesktop_GrGLBinding != fBindingsExported ||
+ (1 < major || (1 == major && 3 <= minor)) ||
+ has_gl_extension_from_string("GL_ARB_texture_compression", ext)) {
+ if (NULL == fCompressedTexImage2D) {
+ return false;
+ }
+ }
+
+ // part of desktop GL
+ if (kDesktop_GrGLBinding == fBindingsExported &&
+ NULL == fLineWidth) {
+ return false;
+ }
+ // FBO MSAA
+ if (kDesktop_GrGLBinding == fBindingsExported) {
+ // GL 3.0 and the ARB extension have multisample + blit
+ if ((major >= 3) || has_gl_extension_from_string("GL_ARB_framebuffer_object", ext)) {
+ if (NULL == fRenderbufferStorageMultisample ||
+ NULL == fBlitFramebuffer) {
+ return false;
+ }
+ } else {
+ if (has_gl_extension_from_string("GL_EXT_framebuffer_blit", ext) &&
+ NULL == fBlitFramebuffer) {
+ return false;
+ }
+ if (has_gl_extension_from_string("GL_EXT_framebuffer_multisample", ext) &&
+ NULL == fRenderbufferStorageMultisample) {
+ return false;
+ }
+ }
+ } else {
+ if (has_gl_extension_from_string("GL_CHROMIUM_framebuffer_multisample", ext)) {
+ if (NULL == fRenderbufferStorageMultisample ||
+ NULL == fBlitFramebuffer) {
+ return false;
+ }
+ }
+ if (has_gl_extension_from_string("GL_APPLE_framebuffer_multisample", ext)) {
+ if (NULL == fRenderbufferStorageMultisample ||
+ NULL == fResolveMultisampleFramebuffer) {
+ return false;
+ }
+ }
+ }
+
+ // On ES buffer mapping is an extension. On Desktop
+ // buffer mapping was part of original VBO extension
+ // which we require.
+ if (kDesktop_GrGLBinding == fBindingsExported ||
+ has_gl_extension_from_string("GL_OES_mapbuffer", ext)) {
+ if (NULL == fMapBuffer ||
+ NULL == fUnmapBuffer) {
+ return false;
+ }
+ }
+
+ return true;
+}
+