diff options
| author | Ian Romanick <[email protected]> | 2005-08-18 22:27:37 +0000 |
|---|---|---|
| committer | Ian Romanick <[email protected]> | 2005-08-18 22:27:37 +0000 |
| commit | e0029b33effd299bb6b659ffd4309f8fa5c7afcf (patch) | |
| tree | 16eb0ab2af687bb1638f527bff628da696d66efc /src/mesa/drivers | |
| parent | ab5be2c5f7b18fb46116b1bfa968d0a70aeeb556 (diff) | |
Add support for NV_blend_square. This was tested with
progs/tests/blendsquare.
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i810/i810context.c | 1 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i810/i810state.c | 24 |
2 files changed, 19 insertions, 6 deletions
diff --git a/src/mesa/drivers/dri/i810/i810context.c b/src/mesa/drivers/dri/i810/i810context.c index ef693da1558..8389321924e 100644 --- a/src/mesa/drivers/dri/i810/i810context.c +++ b/src/mesa/drivers/dri/i810/i810context.c @@ -128,6 +128,7 @@ const struct dri_extension card_extensions[] = { "GL_EXT_texture_edge_clamp", NULL }, { "GL_EXT_texture_lod_bias", NULL }, { "GL_MESA_ycbcr_texture", NULL }, + { "GL_NV_blend_square", NULL }, { "GL_SGIS_generate_mipmap", NULL }, { NULL, NULL } }; diff --git a/src/mesa/drivers/dri/i810/i810state.c b/src/mesa/drivers/dri/i810/i810state.c index ec9f07ada35..62dc819b32b 100644 --- a/src/mesa/drivers/dri/i810/i810state.c +++ b/src/mesa/drivers/dri/i810/i810state.c @@ -103,14 +103,23 @@ static void i810BlendFuncSeparate( GLcontext *ctx, GLenum sfactorRGB, switch (ctx->Color.BlendSrcRGB) { case GL_ZERO: a |= SDM_SRC_ZERO; break; - case GL_SRC_ALPHA: a |= SDM_SRC_SRC_ALPHA; break; case GL_ONE: a |= SDM_SRC_ONE; break; - case GL_DST_COLOR: a |= SDM_SRC_DST_COLOR; break; - case GL_ONE_MINUS_DST_COLOR: a |= SDM_SRC_INV_DST_COLOR; break; + case GL_SRC_COLOR: a |= SDM_SRC_SRC_COLOR; break; + case GL_ONE_MINUS_SRC_COLOR: a |= SDM_SRC_INV_SRC_COLOR; break; + case GL_SRC_ALPHA: a |= SDM_SRC_SRC_ALPHA; break; case GL_ONE_MINUS_SRC_ALPHA: a |= SDM_SRC_INV_SRC_ALPHA; break; case GL_DST_ALPHA: a |= SDM_SRC_ONE; break; case GL_ONE_MINUS_DST_ALPHA: a |= SDM_SRC_ZERO; break; - case GL_SRC_ALPHA_SATURATE: /*a |= SDM_SRC_SRC_ALPHA; break;*/ + case GL_DST_COLOR: a |= SDM_SRC_DST_COLOR; break; + case GL_ONE_MINUS_DST_COLOR: a |= SDM_SRC_INV_DST_COLOR; break; + + /* (f, f, f, 1), f = min(As, 1 - Ad) = min(As, 1 - 1) = 0 + * So (f, f, f, 1) = (0, 0, 0, 1). Since there is no destination alpha and + * the only supported alpha operation is GL_FUNC_ADD, the result modulating + * the source alpha with the alpha factor is largely irrelevant. + */ + case GL_SRC_ALPHA_SATURATE: a |= SDM_SRC_ZERO; break; + case GL_CONSTANT_COLOR: case GL_ONE_MINUS_CONSTANT_COLOR: case GL_CONSTANT_ALPHA: @@ -122,14 +131,17 @@ static void i810BlendFuncSeparate( GLcontext *ctx, GLenum sfactorRGB, } switch (ctx->Color.BlendDstRGB) { - case GL_SRC_ALPHA: a |= SDM_DST_SRC_ALPHA; break; - case GL_ONE_MINUS_SRC_ALPHA: a |= SDM_DST_INV_SRC_ALPHA; break; case GL_ZERO: a |= SDM_DST_ZERO; break; case GL_ONE: a |= SDM_DST_ONE; break; case GL_SRC_COLOR: a |= SDM_DST_SRC_COLOR; break; case GL_ONE_MINUS_SRC_COLOR: a |= SDM_DST_INV_SRC_COLOR; break; + case GL_SRC_ALPHA: a |= SDM_DST_SRC_ALPHA; break; + case GL_ONE_MINUS_SRC_ALPHA: a |= SDM_DST_INV_SRC_ALPHA; break; case GL_DST_ALPHA: a |= SDM_DST_ONE; break; case GL_ONE_MINUS_DST_ALPHA: a |= SDM_DST_ZERO; break; + case GL_DST_COLOR: a |= SDM_DST_DST_COLOR; break; + case GL_ONE_MINUS_DST_COLOR: a |= SDM_DST_INV_DST_COLOR; break; + case GL_CONSTANT_COLOR: case GL_ONE_MINUS_CONSTANT_COLOR: case GL_CONSTANT_ALPHA: |