diff options
author | Brian Paul <[email protected]> | 2009-12-29 16:17:14 -0700 |
---|---|---|
committer | Brian Paul <[email protected]> | 2009-12-29 16:17:14 -0700 |
commit | fd5511d27fc44096117c47ab503fb5b47f993061 (patch) | |
tree | ce5b1a3152d1c7ec495403f43e222c421b6e99d0 /src/mesa/drivers/common/meta.c | |
parent | 126b35bd3acbf486471879531cd2e6f446b14497 (diff) |
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().
Diffstat (limited to 'src/mesa/drivers/common/meta.c')
-rw-r--r-- | src/mesa/drivers/common/meta.c | 32 |
1 files changed, 23 insertions, 9 deletions
diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c index da2c06677a6..0676173745c 100644 --- a/src/mesa/drivers/common/meta.c +++ b/src/mesa/drivers/common/meta.c @@ -111,7 +111,7 @@ struct save_state GLboolean ColorLogicOpEnabled; /** META_COLOR_MASK */ - GLubyte ColorMask[4]; + GLubyte ColorMask[MAX_DRAW_BUFFERS][4]; /** META_DEPTH_TEST */ struct gl_depthbuffer_attrib Depth; @@ -347,11 +347,12 @@ _mesa_meta_begin(GLcontext *ctx, GLbitfield state) } if (state & META_COLOR_MASK) { - COPY_4V(save->ColorMask, ctx->Color.ColorMask); - if (!ctx->Color.ColorMask[0] || - !ctx->Color.ColorMask[1] || - !ctx->Color.ColorMask[2] || - !ctx->Color.ColorMask[3]) + memcpy(save->ColorMask, ctx->Color.ColorMask, + sizeof(ctx->Color.ColorMask)); + if (!ctx->Color.ColorMask[0][0] || + !ctx->Color.ColorMask[0][1] || + !ctx->Color.ColorMask[0][2] || + !ctx->Color.ColorMask[0][3]) _mesa_ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); } @@ -581,9 +582,22 @@ _mesa_meta_end(GLcontext *ctx) } if (state & META_COLOR_MASK) { - if (!TEST_EQ_4V(ctx->Color.ColorMask, save->ColorMask)) - _mesa_ColorMask(save->ColorMask[0], save->ColorMask[1], - save->ColorMask[2], save->ColorMask[3]); + GLuint i; + for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) { + if (!TEST_EQ_4V(ctx->Color.ColorMask[i], save->ColorMask[i])) { + if (i == 0) { + _mesa_ColorMask(save->ColorMask[i][0], save->ColorMask[i][1], + save->ColorMask[i][2], save->ColorMask[i][3]); + } + else { + _mesa_ColorMaskIndexed(i, + save->ColorMask[i][0], + save->ColorMask[i][1], + save->ColorMask[i][2], + save->ColorMask[i][3]); + } + } + } } if (state & META_DEPTH_TEST) { |