Module: Mesa Branch: master Commit: d492e7b017178c03b4979cf4ff266162d83c4f37 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=d492e7b017178c03b4979cf4ff266162d83c4f37
Author: Eric Anholt <[email protected]> Date: Mon Sep 28 14:03:40 2009 -0700 meta: Fix invalid PBO access from DrawPixels when trying to just alloc. This whole reuse of buffers (TexSubImage instead of TexImage, SubData instead of Data) is bad for hardware drivers, but it's even worse when we accidentally try to access the 2x2 PBO to fill the new 16x16 texture we're creating, producing GL errors. Fixes piglit pbo-drawpixels. Bug #14163. --- src/mesa/drivers/common/meta.c | 21 +++++++++++++++------ 1 files changed, 15 insertions(+), 6 deletions(-) diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c index b445323..a152087 100644 --- a/src/mesa/drivers/common/meta.c +++ b/src/mesa/drivers/common/meta.c @@ -974,7 +974,8 @@ setup_copypix_texture(struct temp_texture *tex, * Setup/load texture for glDrawPixels. */ static void -setup_drawpix_texture(struct temp_texture *tex, +setup_drawpix_texture(GLcontext *ctx, + struct temp_texture *tex, GLboolean newTex, GLenum texIntFormat, GLsizei width, GLsizei height, @@ -995,9 +996,17 @@ setup_drawpix_texture(struct temp_texture *tex, tex->Width, tex->Height, 0, format, type, pixels); } else { + struct gl_buffer_object *save_unpack_obj = NULL; + + _mesa_reference_buffer_object(ctx, &save_unpack_obj, + ctx->Unpack.BufferObj); + _mesa_BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0); /* create empty texture */ _mesa_TexImage2D(tex->Target, 0, tex->IntFormat, tex->Width, tex->Height, 0, format, type, NULL); + if (save_unpack_obj != NULL) + _mesa_BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, + save_unpack_obj->Name); /* load image */ _mesa_TexSubImage2D(tex->Target, 0, 0, 0, width, height, format, type, pixels); @@ -1162,7 +1171,7 @@ _mesa_meta_BlitFramebuffer(GLcontext *ctx, _mesa_ReadPixels(srcX, srcY, srcW, srcH, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, tmp); - setup_drawpix_texture(tex, newTex, GL_DEPTH_COMPONENT, srcW, srcH, + setup_drawpix_texture(ctx, tex, newTex, GL_DEPTH_COMPONENT, srcW, srcH, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, tmp); _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, blit->DepthFP); @@ -1725,7 +1734,7 @@ _mesa_meta_DrawPixels(GLcontext *ctx, if (!drawpix->StencilFP) init_draw_stencil_pixels(ctx); - setup_drawpix_texture(tex, newTex, texIntFormat, width, height, + setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height, GL_ALPHA, type, pixels); _mesa_ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); @@ -1768,14 +1777,14 @@ _mesa_meta_DrawPixels(GLcontext *ctx, _mesa_ProgramLocalParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 0, ctx->Current.RasterColor); - setup_drawpix_texture(tex, newTex, texIntFormat, width, height, + setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height, format, type, pixels); _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); } else { /* Drawing RGBA */ - setup_drawpix_texture(tex, newTex, texIntFormat, width, height, + setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height, format, type, pixels); _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); } @@ -1923,7 +1932,7 @@ _mesa_meta_Bitmap(GLcontext *ctx, _mesa_set_enable(ctx, GL_ALPHA_TEST, GL_TRUE); _mesa_AlphaFunc(GL_GREATER, 0.0); - setup_drawpix_texture(tex, newTex, texIntFormat, width, height, + setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height, GL_ALPHA, GL_UNSIGNED_BYTE, bitmap8); _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
