From fd5511d27fc44096117c47ab503fb5b47f993061 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Tue, 29 Dec 2009 16:17:14 -0700 Subject: mesa: implement per-buffer color masking This is part of the GL_EXT_draw_buffers2 extension and part of GL 3.0. The ctx->Color.ColorMask field is now a 2-D array. Until drivers are modified to support per-buffer color masking, they can just look at the 0th color mask. The new _mesa_ColorMaskIndexed() function will be called by glColorMaskIndexedEXT() or glColorMaski(). --- src/mesa/swrast/s_clear.c | 50 +++++++++++++++-------------------------------- 1 file changed, 16 insertions(+), 34 deletions(-) (limited to 'src/mesa/swrast/s_clear.c') diff --git a/src/mesa/swrast/s_clear.c b/src/mesa/swrast/s_clear.c index 002718ded8..2d27797d43 100644 --- a/src/mesa/swrast/s_clear.c +++ b/src/mesa/swrast/s_clear.c @@ -40,7 +40,8 @@ * Clear the color buffer when glColorMask is in effect. */ static void -clear_rgba_buffer_with_masking(GLcontext *ctx, struct gl_renderbuffer *rb) +clear_rgba_buffer_with_masking(GLcontext *ctx, struct gl_renderbuffer *rb, + GLuint buf) { const GLint x = ctx->DrawBuffer->_Xmin; const GLint y = ctx->DrawBuffer->_Ymin; @@ -95,7 +96,7 @@ clear_rgba_buffer_with_masking(GLcontext *ctx, struct gl_renderbuffer *rb) for (i = 0; i < height; i++) { span.x = x; span.y = y + i; - _swrast_mask_rgba_span(ctx, rb, &span); + _swrast_mask_rgba_span(ctx, rb, &span, buf); /* write masked row */ rb->PutRow(ctx, rb, width, x, y + i, span.array->rgba, NULL); } @@ -145,7 +146,7 @@ clear_ci_buffer_with_masking(GLcontext *ctx, struct gl_renderbuffer *rb) * Clear an rgba color buffer without channel masking. */ static void -clear_rgba_buffer(GLcontext *ctx, struct gl_renderbuffer *rb) +clear_rgba_buffer(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint buf) { const GLint x = ctx->DrawBuffer->_Xmin; const GLint y = ctx->DrawBuffer->_Ymin; @@ -158,10 +159,10 @@ clear_rgba_buffer(GLcontext *ctx, struct gl_renderbuffer *rb) ASSERT(ctx->Visual.rgbMode); - ASSERT(ctx->Color.ColorMask[0] && - ctx->Color.ColorMask[1] && - ctx->Color.ColorMask[2] && - ctx->Color.ColorMask[3]); + ASSERT(ctx->Color.ColorMask[buf][0] && + ctx->Color.ColorMask[buf][1] && + ctx->Color.ColorMask[buf][2] && + ctx->Color.ColorMask[buf][3]); ASSERT(rb->PutMonoRow); @@ -246,43 +247,24 @@ clear_ci_buffer(GLcontext *ctx, struct gl_renderbuffer *rb) static void clear_color_buffers(GLcontext *ctx) { - GLboolean masking; GLuint buf; - if (ctx->Visual.rgbMode) { - if (ctx->Color.ColorMask[0] && - ctx->Color.ColorMask[1] && - ctx->Color.ColorMask[2] && - ctx->Color.ColorMask[3]) { - masking = GL_FALSE; - } - else { - masking = GL_TRUE; - } - } - else { - struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0]; - const GLuint indexMask = (1 << _mesa_get_format_bits(rb->Format, GL_INDEX_BITS)) - 1; - if ((ctx->Color.IndexMask & indexMask) == indexMask) { - masking = GL_FALSE; - } - else { - masking = GL_TRUE; - } - } - for (buf = 0; buf < ctx->DrawBuffer->_NumColorDrawBuffers; buf++) { struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[buf]; if (ctx->Visual.rgbMode) { - if (masking) { - clear_rgba_buffer_with_masking(ctx, rb); + if (ctx->Color.ColorMask[buf][0] == 0 || + ctx->Color.ColorMask[buf][1] == 0 || + ctx->Color.ColorMask[buf][2] == 0 || + ctx->Color.ColorMask[buf][3] == 0) { + clear_rgba_buffer_with_masking(ctx, rb, buf); } else { - clear_rgba_buffer(ctx, rb); + clear_rgba_buffer(ctx, rb, buf); } } else { - if (masking) { + const GLuint indexMask = (1 << _mesa_get_format_bits(rb->Format, GL_INDEX_BITS)) - 1; + if ((ctx->Color.IndexMask & indexMask) != indexMask) { clear_ci_buffer_with_masking(ctx, rb); } else { -- cgit v1.2.3 From ab26682eb4db0dbe160b13f1e320ec9164c3afc5 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Wed, 30 Dec 2009 21:40:12 -0700 Subject: swrast: add check for conditional rendering --- src/mesa/swrast/s_bitmap.c | 4 ++++ src/mesa/swrast/s_blit.c | 4 ++++ src/mesa/swrast/s_clear.c | 4 ++++ src/mesa/swrast/s_copypix.c | 4 ++++ src/mesa/swrast/s_drawpix.c | 4 ++++ 5 files changed, 20 insertions(+) (limited to 'src/mesa/swrast/s_clear.c') diff --git a/src/mesa/swrast/s_bitmap.c b/src/mesa/swrast/s_bitmap.c index 3dbdf2a61a..46c63aa645 100644 --- a/src/mesa/swrast/s_bitmap.c +++ b/src/mesa/swrast/s_bitmap.c @@ -30,6 +30,7 @@ #include "main/glheader.h" #include "main/bufferobj.h" +#include "main/condrender.h" #include "main/image.h" #include "main/macros.h" #include "main/pixel.h" @@ -56,6 +57,9 @@ _swrast_Bitmap( GLcontext *ctx, GLint px, GLint py, ASSERT(ctx->RenderMode == GL_RENDER); + if (!_mesa_check_conditional_render(ctx)) + return; /* don't draw */ + bitmap = (const GLubyte *) _mesa_map_pbo_source(ctx, unpack, bitmap); if (!bitmap) return; diff --git a/src/mesa/swrast/s_blit.c b/src/mesa/swrast/s_blit.c index 8303e4debc..f73ac78ae2 100644 --- a/src/mesa/swrast/s_blit.c +++ b/src/mesa/swrast/s_blit.c @@ -24,6 +24,7 @@ #include "main/glheader.h" +#include "main/condrender.h" #include "main/image.h" #include "main/macros.h" #include "s_context.h" @@ -567,6 +568,9 @@ _swrast_BlitFramebuffer(GLcontext *ctx, }; GLint i; + if (!_mesa_check_conditional_render(ctx)) + return; /* don't clear */ + if (!ctx->DrawBuffer->_NumColorDrawBuffers) return; diff --git a/src/mesa/swrast/s_clear.c b/src/mesa/swrast/s_clear.c index 2d27797d43..21167a64b3 100644 --- a/src/mesa/swrast/s_clear.c +++ b/src/mesa/swrast/s_clear.c @@ -24,6 +24,7 @@ #include "main/glheader.h" #include "main/colormac.h" +#include "main/condrender.h" #include "main/formats.h" #include "main/macros.h" #include "main/imports.h" @@ -300,6 +301,9 @@ _swrast_Clear(GLcontext *ctx, GLbitfield buffers) } #endif + if (!_mesa_check_conditional_render(ctx)) + return; /* don't clear */ + swrast_render_start(ctx); /* do software clearing here */ diff --git a/src/mesa/swrast/s_copypix.c b/src/mesa/swrast/s_copypix.c index 5ecfb1e90a..986b6aff4f 100644 --- a/src/mesa/swrast/s_copypix.c +++ b/src/mesa/swrast/s_copypix.c @@ -26,6 +26,7 @@ #include "main/glheader.h" #include "main/context.h" #include "main/colormac.h" +#include "main/condrender.h" #include "main/convolve.h" #include "main/histogram.h" #include "main/image.h" @@ -901,6 +902,9 @@ _swrast_CopyPixels( GLcontext *ctx, SWcontext *swrast = SWRAST_CONTEXT(ctx); swrast_render_start(ctx); + if (!_mesa_check_conditional_render(ctx)) + return; /* don't copy */ + if (swrast->NewState) _swrast_validate_derived( ctx ); diff --git a/src/mesa/swrast/s_drawpix.c b/src/mesa/swrast/s_drawpix.c index 6970b2e9cb..55a4c4c3c6 100644 --- a/src/mesa/swrast/s_drawpix.c +++ b/src/mesa/swrast/s_drawpix.c @@ -25,6 +25,7 @@ #include "main/glheader.h" #include "main/bufferobj.h" +#include "main/condrender.h" #include "main/context.h" #include "main/convolve.h" #include "main/image.h" @@ -831,6 +832,9 @@ _swrast_DrawPixels( GLcontext *ctx, SWcontext *swrast = SWRAST_CONTEXT(ctx); GLboolean save_vp_override = ctx->VertexProgram._Overriden; + if (!_mesa_check_conditional_render(ctx)) + return; /* don't draw */ + /* We are creating fragments directly, without going through vertex * programs. * -- cgit v1.2.3