| /************************************************************************** |
| * |
| * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| **************************************************************************/ |
| |
| #include "main/mtypes.h" |
| #include "main/enums.h" |
| #include "main/image.h" |
| #include "main/teximage.h" |
| #include "main/texstate.h" |
| #include "main/mipmap.h" |
| |
| #include "drivers/common/meta.h" |
| |
| #include "intel_screen.h" |
| #include "intel_context.h" |
| #include "intel_batchbuffer.h" |
| #include "intel_buffers.h" |
| #include "intel_mipmap_tree.h" |
| #include "intel_regions.h" |
| #include "intel_fbo.h" |
| #include "intel_tex.h" |
| #include "intel_blit.h" |
| |
| #define FILE_DEBUG_FLAG DEBUG_TEXTURE |
| |
| /** |
| * Get the intel_region which is the source for any glCopyTex[Sub]Image call. |
| * |
| * Do the best we can using the blitter. A future project is to use |
| * the texture engine and fragment programs for these copies. |
| */ |
| static const struct intel_region * |
| get_teximage_source(struct intel_context *intel, GLenum internalFormat) |
| { |
| struct intel_renderbuffer *irb; |
| |
| DBG("%s %s\n", __FUNCTION__, |
| _mesa_lookup_enum_by_nr(internalFormat)); |
| |
| switch (internalFormat) { |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_COMPONENT16: |
| irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH); |
| if (irb && irb->region && irb->region->cpp == 2) |
| return irb->region; |
| return NULL; |
| case GL_DEPTH24_STENCIL8_EXT: |
| case GL_DEPTH_STENCIL_EXT: |
| irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH); |
| if (irb && irb->region && irb->region->cpp == 4) |
| return irb->region; |
| return NULL; |
| case GL_RGBA: |
| case GL_RGBA8: |
| case GL_RGB: |
| case GL_RGB8: |
| return intel_readbuf_region(intel); |
| default: |
| return NULL; |
| } |
| } |
| |
| |
| static GLboolean |
| do_copy_texsubimage(struct intel_context *intel, |
| GLenum target, |
| struct intel_texture_image *intelImage, |
| GLenum internalFormat, |
| GLint dstx, GLint dsty, |
| GLint x, GLint y, GLsizei width, GLsizei height) |
| { |
| GLcontext *ctx = &intel->ctx; |
| const struct intel_region *src = get_teximage_source(intel, internalFormat); |
| |
| if (!intelImage->mt || !src) { |
| if (INTEL_DEBUG & DEBUG_FALLBACKS) |
| fprintf(stderr, "%s fail %p %p (0x%08x)\n", |
| __FUNCTION__, intelImage->mt, src, internalFormat); |
| return GL_FALSE; |
| } |
| |
| if (intelImage->mt->cpp != src->cpp) { |
| if (INTEL_DEBUG & DEBUG_FALLBACKS) |
| fprintf(stderr, "%s fail %d vs %d cpp\n", |
| __FUNCTION__, intelImage->mt->cpp, src->cpp); |
| return GL_FALSE; |
| } |
| |
| /* intelFlush(ctx); */ |
| { |
| drm_intel_bo *dst_bo = intel_region_buffer(intel, |
| intelImage->mt->region, |
| INTEL_WRITE_PART); |
| const GLint orig_x = x; |
| const GLint orig_y = y; |
| GLuint image_x, image_y; |
| GLshort src_pitch; |
| |
| /* get dest x/y in destination texture */ |
| intel_miptree_get_image_offset(intelImage->mt, |
| intelImage->level, |
| intelImage->face, |
| 0, |
| &image_x, &image_y); |
| /* Update dst for clipped src. Need to also clip the source rect. */ |
| dstx += x - orig_x; |
| dsty += y - orig_y; |
| |
| /* Can't blit to tiled buffers with non-tile-aligned offset. */ |
| if (intelImage->mt->region->tiling == I915_TILING_Y) { |
| return GL_FALSE; |
| } |
| |
| if (ctx->ReadBuffer->Name == 0) { |
| /* reading from a window, adjust x, y */ |
| const __DRIdrawable *dPriv = intel->driReadDrawable; |
| y = dPriv->y + (dPriv->h - (y + height)); |
| x += dPriv->x; |
| |
| /* Invert the data coming from the source rectangle due to GL |
| * and hardware disagreeing on where y=0 is. |
| * |
| * It appears that our offsets and pitches get mangled |
| * appropriately by the hardware, and we don't need to adjust them |
| * on our own. |
| */ |
| src_pitch = -src->pitch; |
| } else { |
| /* reading from a FBO, y is already oriented the way we like */ |
| src_pitch = src->pitch; |
| } |
| |
| /* blit from src buffer to texture */ |
| if (!intelEmitCopyBlit(intel, |
| intelImage->mt->cpp, |
| src_pitch, |
| src->buffer, |
| 0, |
| src->tiling, |
| intelImage->mt->pitch, |
| dst_bo, |
| 0, |
| intelImage->mt->region->tiling, |
| src->draw_x + x, src->draw_y + y, |
| image_x + dstx, image_y + dsty, |
| width, height, |
| GL_COPY)) { |
| return GL_FALSE; |
| } |
| } |
| |
| return GL_TRUE; |
| } |
| |
| |
| static void |
| intelCopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, |
| GLenum internalFormat, |
| GLint x, GLint y, GLsizei width, GLint border) |
| { |
| struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); |
| struct gl_texture_object *texObj = |
| _mesa_select_tex_object(ctx, texUnit, target); |
| struct gl_texture_image *texImage = |
| _mesa_select_tex_image(ctx, texObj, target, level); |
| int srcx, srcy, dstx, dsty, height; |
| |
| if (border) |
| goto fail; |
| |
| /* Setup or redefine the texture object, mipmap tree and texture |
| * image. Don't populate yet. |
| */ |
| ctx->Driver.TexImage1D(ctx, target, level, internalFormat, |
| width, border, |
| GL_RGBA, CHAN_TYPE, NULL, |
| &ctx->DefaultPacking, texObj, texImage); |
| srcx = x; |
| srcy = y; |
| dstx = 0; |
| dsty = 0; |
| height = 1; |
| if (!_mesa_clip_copytexsubimage(ctx, |
| &dstx, &dsty, |
| &srcx, &srcy, |
| &width, &height)) |
| return; |
| |
| if (!do_copy_texsubimage(intel_context(ctx), target, |
| intel_texture_image(texImage), |
| internalFormat, 0, 0, x, y, width, height)) |
| goto fail; |
| |
| return; |
| |
| fail: |
| if (INTEL_DEBUG & DEBUG_FALLBACKS) |
| fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__); |
| _mesa_meta_CopyTexImage1D(ctx, target, level, internalFormat, x, y, |
| width, border); |
| } |
| |
| |
| static void |
| intelCopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, |
| GLenum internalFormat, |
| GLint x, GLint y, GLsizei width, GLsizei height, |
| GLint border) |
| { |
| struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); |
| struct gl_texture_object *texObj = |
| _mesa_select_tex_object(ctx, texUnit, target); |
| struct gl_texture_image *texImage = |
| _mesa_select_tex_image(ctx, texObj, target, level); |
| int srcx, srcy, dstx, dsty; |
| |
| if (border) |
| goto fail; |
| |
| /* Setup or redefine the texture object, mipmap tree and texture |
| * image. Don't populate yet. |
| */ |
| ctx->Driver.TexImage2D(ctx, target, level, internalFormat, |
| width, height, border, |
| GL_RGBA, GL_UNSIGNED_BYTE, NULL, |
| &ctx->DefaultPacking, texObj, texImage); |
| |
| srcx = x; |
| srcy = y; |
| dstx = 0; |
| dsty = 0; |
| if (!_mesa_clip_copytexsubimage(ctx, |
| &dstx, &dsty, |
| &srcx, &srcy, |
| &width, &height)) |
| return; |
| |
| if (!do_copy_texsubimage(intel_context(ctx), target, |
| intel_texture_image(texImage), |
| internalFormat, 0, 0, x, y, width, height)) |
| goto fail; |
| |
| return; |
| |
| fail: |
| if (INTEL_DEBUG & DEBUG_FALLBACKS) |
| fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__); |
| _mesa_meta_CopyTexImage2D(ctx, target, level, internalFormat, x, y, |
| width, height, border); |
| } |
| |
| |
| static void |
| intelCopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, |
| GLint xoffset, GLint x, GLint y, GLsizei width) |
| { |
| struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); |
| struct gl_texture_object *texObj = |
| _mesa_select_tex_object(ctx, texUnit, target); |
| struct gl_texture_image *texImage = |
| _mesa_select_tex_image(ctx, texObj, target, level); |
| GLenum internalFormat = texImage->InternalFormat; |
| |
| /* XXX need to check <border> as in above function? */ |
| |
| /* Need to check texture is compatible with source format. |
| */ |
| |
| if (!do_copy_texsubimage(intel_context(ctx), target, |
| intel_texture_image(texImage), |
| internalFormat, xoffset, 0, x, y, width, 1)) { |
| if (INTEL_DEBUG & DEBUG_FALLBACKS) |
| fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__); |
| _mesa_meta_CopyTexSubImage1D(ctx, target, level, xoffset, x, y, width); |
| } |
| } |
| |
| |
| static void |
| intelCopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, |
| GLint xoffset, GLint yoffset, |
| GLint x, GLint y, GLsizei width, GLsizei height) |
| { |
| struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); |
| struct gl_texture_object *texObj = |
| _mesa_select_tex_object(ctx, texUnit, target); |
| struct gl_texture_image *texImage = |
| _mesa_select_tex_image(ctx, texObj, target, level); |
| GLenum internalFormat = texImage->InternalFormat; |
| |
| /* Need to check texture is compatible with source format. |
| */ |
| |
| if (!do_copy_texsubimage(intel_context(ctx), target, |
| intel_texture_image(texImage), |
| internalFormat, |
| xoffset, yoffset, x, y, width, height)) { |
| |
| if (INTEL_DEBUG & DEBUG_FALLBACKS) |
| fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__); |
| _mesa_meta_CopyTexSubImage2D(ctx, target, level, |
| xoffset, yoffset, x, y, width, height); |
| } |
| } |
| |
| |
| void |
| intelInitTextureCopyImageFuncs(struct dd_function_table *functions) |
| { |
| functions->CopyTexImage1D = intelCopyTexImage1D; |
| functions->CopyTexImage2D = intelCopyTexImage2D; |
| functions->CopyTexSubImage1D = intelCopyTexSubImage1D; |
| functions->CopyTexSubImage2D = intelCopyTexSubImage2D; |
| } |