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Enable GL_EXT_blend_subtract and GL_NV_blend_square.

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GL_EXT_blend_subtract was already enabled via GL_ARB_imaging, but now
one of the added modes is supported in hardware.  GL_NV_blend_square
was tested with progs/tests/blendsquare on an Rage128 Pro with PCI ID
1002:5046.  I know there are some differences with some versions of
the chip.
This commit is contained in:
Ian Romanick
2004-06-04 00:46:23 +00:00
parent d672f38709
commit 98e7d810e1
3 changed files with 120 additions and 128 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/mesa/drivers/dri/r128/r128_context.c
+2
View File
@@ -74,8 +74,10 @@ static const char * const card_extensions[] =
"GL_ARB_texture_compression",
"GL_ARB_texture_env_add",
"GL_ARB_texture_mirrored_repeat",
"GL_EXT_blend_subtract",
"GL_EXT_texture_edge_clamp",
"GL_MESA_ycbcr_texture",
"GL_NV_blend_square",
"GL_SGIS_generate_mipmap",
NULL
};
src/mesa/drivers/dri/r128/r128_state.c
+89 -62
View File
@@ -56,6 +56,76 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
* Alpha blending
*/
/**
* Calculate the hardware blend factor setting. This same function is used
* for source and destination of both alpha and RGB.
*
* \returns
* The hardware register value for the specified blend factor. This value
* will need to be shifted into the correct position for either source or
* destination factor.
*
* \todo
* Since the two cases where source and destination are handled differently
* are essentially error cases, they should never happen. Determine if these
* cases can be removed.
*/
static int blend_factor( r128ContextPtr rmesa, GLenum factor, GLboolean is_src )
{
int func;
switch ( factor ) {
case GL_ZERO:
func = R128_ALPHA_BLEND_ZERO;
break;
case GL_ONE:
func = R128_ALPHA_BLEND_ONE;
break;
case GL_SRC_COLOR:
func = R128_ALPHA_BLEND_SRCCOLOR;
break;
case GL_ONE_MINUS_SRC_COLOR:
func = R128_ALPHA_BLEND_INVSRCCOLOR;
break;
case GL_SRC_ALPHA:
func = R128_ALPHA_BLEND_SRCALPHA;
break;
case GL_ONE_MINUS_SRC_ALPHA:
func = R128_ALPHA_BLEND_INVSRCALPHA;
break;
case GL_SRC_ALPHA_SATURATE:
func = (is_src) ? R128_ALPHA_BLEND_SAT : R128_ALPHA_BLEND_ZERO;
break;
case GL_DST_COLOR:
func = R128_ALPHA_BLEND_DSTCOLOR;
break;
case GL_ONE_MINUS_DST_COLOR:
func = R128_ALPHA_BLEND_INVDSTCOLOR;
break;
case GL_DST_ALPHA:
func = R128_ALPHA_BLEND_DSTALPHA;
break;
case GL_ONE_MINUS_DST_ALPHA:
func = R128_ALPHA_BLEND_INVDSTALPHA;
break;
case GL_CONSTANT_COLOR:
case GL_ONE_MINUS_CONSTANT_COLOR:
case GL_CONSTANT_ALPHA:
case GL_ONE_MINUS_CONSTANT_ALPHA:
default:
FALLBACK( rmesa, R128_FALLBACK_BLEND_FUNC, GL_TRUE );
func = (is_src) ? R128_ALPHA_BLEND_ONE : R128_ALPHA_BLEND_ZERO;
break;
}
return func;
}
static void r128UpdateAlphaMode( GLcontext *ctx )
{
r128ContextPtr rmesa = R128_CONTEXT(ctx);
@@ -105,67 +175,24 @@ static void r128UpdateAlphaMode( GLcontext *ctx )
FALLBACK( rmesa, R128_FALLBACK_BLEND_FUNC, GL_FALSE );
if ( ctx->Color.BlendEnabled ) {
a &= ~(R128_ALPHA_BLEND_SRC_MASK | R128_ALPHA_BLEND_DST_MASK);
a &= ~((R128_ALPHA_BLEND_MASK << R128_ALPHA_BLEND_SRC_SHIFT) |
(R128_ALPHA_BLEND_MASK << R128_ALPHA_BLEND_DST_SHIFT)
| R128_ALPHA_COMB_FCN_MASK);
switch ( ctx->Color.BlendSrcRGB ) {
case GL_ZERO:
a |= R128_ALPHA_BLEND_SRC_ZERO;
a |= blend_factor( rmesa, ctx->Color.BlendSrcRGB, GL_TRUE )
<< R128_ALPHA_BLEND_SRC_SHIFT;
a |= blend_factor( rmesa, ctx->Color.BlendDstRGB, GL_FALSE )
<< R128_ALPHA_BLEND_DST_SHIFT;
switch (ctx->Color.BlendEquationRGB) {
case GL_FUNC_ADD:
a |= R128_ALPHA_COMB_ADD_CLAMP;
break;
case GL_ONE:
a |= R128_ALPHA_BLEND_SRC_ONE;
break;
case GL_DST_COLOR:
a |= R128_ALPHA_BLEND_SRC_DESTCOLOR;
break;
case GL_ONE_MINUS_DST_COLOR:
a |= R128_ALPHA_BLEND_SRC_INVDESTCOLOR;
break;
case GL_SRC_ALPHA:
a |= R128_ALPHA_BLEND_SRC_SRCALPHA;
break;
case GL_ONE_MINUS_SRC_ALPHA:
a |= R128_ALPHA_BLEND_SRC_INVSRCALPHA;
break;
case GL_DST_ALPHA:
a |= R128_ALPHA_BLEND_SRC_DESTALPHA;
break;
case GL_ONE_MINUS_DST_ALPHA:
a |= R128_ALPHA_BLEND_SRC_INVDESTALPHA;
break;
case GL_SRC_ALPHA_SATURATE:
a |= R128_ALPHA_BLEND_SRC_SRCALPHASAT;
case GL_FUNC_SUBTRACT:
a |= R128_ALPHA_COMB_SUB_SRC_DST_CLAMP;
break;
default:
FALLBACK( rmesa, R128_FALLBACK_BLEND_FUNC, GL_TRUE );
}
switch ( ctx->Color.BlendDstRGB ) {
case GL_ZERO:
a |= R128_ALPHA_BLEND_DST_ZERO;
break;
case GL_ONE:
a |= R128_ALPHA_BLEND_DST_ONE;
break;
case GL_SRC_COLOR:
a |= R128_ALPHA_BLEND_DST_SRCCOLOR;
break;
case GL_ONE_MINUS_SRC_COLOR:
a |= R128_ALPHA_BLEND_DST_INVSRCCOLOR;
break;
case GL_SRC_ALPHA:
a |= R128_ALPHA_BLEND_DST_SRCALPHA;
break;
case GL_ONE_MINUS_SRC_ALPHA:
a |= R128_ALPHA_BLEND_DST_INVSRCALPHA;
break;
case GL_DST_ALPHA:
a |= R128_ALPHA_BLEND_DST_DESTALPHA;
break;
case GL_ONE_MINUS_DST_ALPHA:
a |= R128_ALPHA_BLEND_DST_INVDESTALPHA;
break;
default:
FALLBACK( rmesa, R128_FALLBACK_BLEND_FUNC, GL_TRUE );
FALLBACK( rmesa, R128_FALLBACK_BLEND_EQ, GL_TRUE );
}
t |= R128_ALPHA_ENABLE;
@@ -208,7 +235,7 @@ static void r128DDBlendEquationSeparate( GLcontext *ctx,
/* Can only do blend addition, not min, max, subtract, etc. */
FALLBACK( R128_CONTEXT(ctx), R128_FALLBACK_BLEND_EQ,
modeRGB != GL_FUNC_ADD);
(modeRGB != GL_FUNC_ADD) && (modeRGB != GL_FUNC_SUBTRACT));
rmesa->new_state |= R128_NEW_ALPHA;
}
@@ -1119,8 +1146,8 @@ void r128DDInitState( r128ContextPtr rmesa )
R128_MISC_SCALE_PIX_REPLICATE |
R128_ALPHA_COMB_ADD_CLAMP |
R128_FOG_VERTEX |
R128_ALPHA_BLEND_SRC_ONE |
R128_ALPHA_BLEND_DST_ZERO |
(R128_ALPHA_BLEND_ONE << R128_ALPHA_BLEND_SRC_SHIFT) |
(R128_ALPHA_BLEND_ZERO << R128_ALPHA_BLEND_DST_SHIFT) |
R128_ALPHA_TEST_ALWAYS);
rmesa->setup.texture_clr_cmp_clr_c = 0x00000000;
@@ -1165,8 +1192,8 @@ void r128DDInitState( r128ContextPtr rmesa )
R128_SCALE_PIX_REPLICATE |
R128_ALPHA_COMB_ADD_CLAMP |
R128_FOG_VERTEX |
R128_ALPHA_BLEND_SRC_ONE |
R128_ALPHA_BLEND_DST_ZERO |
(R128_ALPHA_BLEND_ONE << R128_ALPHA_BLEND_SRC_SHIFT) |
(R128_ALPHA_BLEND_ZERO << R128_ALPHA_BLEND_DST_SHIFT) |
R128_ALPHA_TEST_ALWAYS |
R128_COMPOSITE_SHADOW_CMP_EQUAL |
R128_TEX_MAP_ALPHA_IN_TEXTURE |
src/mesa/drivers/dri/r128/server/r128_reg.h
+29 -66
View File
@@ -970,33 +970,31 @@
# define R128_TEX_CACHE_PALLETE_MODE (1 << 11)
# define R128_ALPHA_COMB_ADD_CLAMP (0 << 12)
# define R128_ALPHA_COMB_ADD_NCLAMP (1 << 12)
# define R128_ALPHA_COMB_SUB_DST_SRC_CLAMP (2 << 12)
# define R128_ALPHA_COMB_SUB_DST_SRC_NCLAMP (3 << 12)
# define R128_ALPHA_COMB_SUB_SRC_DST_CLAMP (2 << 12)
# define R128_ALPHA_COMB_SUB_SRC_DST_NCLAMP (3 << 12)
# define R128_ALPHA_COMB_FCN_MASK (3 << 12)
# define R128_FOG_VERTEX (0 << 14)
# define R128_FOG_TABLE (1 << 14)
# define R128_SIGNED_DST_CLAMP (1 << 15)
# define R128_ALPHA_BLEND_SRC_ZERO (0 << 16)
# define R128_ALPHA_BLEND_SRC_ONE (1 << 16)
# define R128_ALPHA_BLEND_SRC_SRCCOLOR (2 << 16)
# define R128_ALPHA_BLEND_SRC_INVSRCCOLOR (3 << 16)
# define R128_ALPHA_BLEND_SRC_SRCALPHA (4 << 16)
# define R128_ALPHA_BLEND_SRC_INVSRCALPHA (5 << 16)
# define R128_ALPHA_BLEND_SRC_DSTALPHA (6 << 16)
# define R128_ALPHA_BLEND_SRC_INVDSTALPHA (7 << 16)
# define R128_ALPHA_BLEND_SRC_DSTCOLOR (8 << 16)
# define R128_ALPHA_BLEND_SRC_INVDSTCOLOR (9 << 16)
# define R128_ALPHA_BLEND_SRC_SAT (10 << 16)
# define R128_ALPHA_BLEND_SRC_BLEND (11 << 16)
# define R128_ALPHA_BLEND_SRC_INVBLEND (12 << 16)
# define R128_ALPHA_BLEND_DST_ZERO (0 << 20)
# define R128_ALPHA_BLEND_DST_ONE (1 << 20)
# define R128_ALPHA_BLEND_DST_SRCCOLOR (2 << 20)
# define R128_ALPHA_BLEND_DST_INVSRCCOLOR (3 << 20)
# define R128_ALPHA_BLEND_DST_SRCALPHA (4 << 20)
# define R128_ALPHA_BLEND_DST_INVSRCALPHA (5 << 20)
# define R128_ALPHA_BLEND_DST_DSTALPHA (6 << 20)
# define R128_ALPHA_BLEND_DST_INVDSTALPHA (7 << 20)
# define R128_ALPHA_BLEND_DST_DSTCOLOR (8 << 20)
# define R128_ALPHA_BLEND_DST_INVDSTCOLOR (9 << 20)
# define R128_ALPHA_BLEND_ZERO (0 )
# define R128_ALPHA_BLEND_ONE (1 )
# define R128_ALPHA_BLEND_SRCCOLOR (2 )
# define R128_ALPHA_BLEND_INVSRCCOLOR (3 )
# define R128_ALPHA_BLEND_SRCALPHA (4 )
# define R128_ALPHA_BLEND_INVSRCALPHA (5 )
# define R128_ALPHA_BLEND_DSTALPHA (6 )
# define R128_ALPHA_BLEND_INVDSTALPHA (7 )
# define R128_ALPHA_BLEND_DSTCOLOR (8 )
# define R128_ALPHA_BLEND_INVDSTCOLOR (9 )
# define R128_ALPHA_BLEND_SAT (10) /* aka SRCALPHASAT */
# define R128_ALPHA_BLEND_BLEND (11) /* aka BOTHSRCALPHA */
# define R128_ALPHA_BLEND_INVBLEND (12) /* aka BOTHINVSRCALPHA */
# define R128_ALPHA_BLEND_MASK (15)
# define R128_ALPHA_BLEND_SRC_SHIFT (16)
# define R128_ALPHA_BLEND_DST_SHIFT (20)
# define R128_ALPHA_TEST_NEVER (0 << 24)
# define R128_ALPHA_TEST_LESS (1 << 24)
# define R128_ALPHA_TEST_LESSEQUAL (2 << 24)
@@ -1005,6 +1003,7 @@
# define R128_ALPHA_TEST_GREATER (5 << 24)
# define R128_ALPHA_TEST_NEQUAL (6 << 24)
# define R128_ALPHA_TEST_ALWAYS (7 << 24)
# define R128_ALPHA_TEST_MASK (7 << 24)
# define R128_COMPOSITE_SHADOW_CMP_EQUAL (0 << 28)
# define R128_COMPOSITE_SHADOW_CMP_NEQUAL (1 << 28)
# define R128_COMPOSITE_SHADOW (1 << 29)
@@ -1125,47 +1124,11 @@
# define R128_MISC_SCALE_3D_TEXMAP_SHADE (2 << 8)
# define R128_MISC_SCALE_PIX_BLEND (0 << 10)
# define R128_MISC_SCALE_PIX_REPLICATE (1 << 10)
# define R128_ALPHA_COMB_ADD_CLAMP (0 << 12)
# define R128_ALPHA_COMB_ADD_NO_CLAMP (1 << 12)
# define R128_ALPHA_COMB_SUB_SRC_DST_CLAMP (2 << 12)
# define R128_ALPHA_COMB_SUB_SRC_DST_NO_CLAMP (3 << 12)
# define R128_FOG_VERTEX (0 << 14)
# define R128_FOG_TABLE (1 << 14)
# define R128_ALPHA_BLEND_SRC_ZERO (0 << 16)
# define R128_ALPHA_BLEND_SRC_ONE (1 << 16)
# define R128_ALPHA_BLEND_SRC_SRCCOLOR (2 << 16)
# define R128_ALPHA_BLEND_SRC_INVSRCCOLOR (3 << 16)
# define R128_ALPHA_BLEND_SRC_SRCALPHA (4 << 16)
# define R128_ALPHA_BLEND_SRC_INVSRCALPHA (5 << 16)
# define R128_ALPHA_BLEND_SRC_DESTALPHA (6 << 16)
# define R128_ALPHA_BLEND_SRC_INVDESTALPHA (7 << 16)
# define R128_ALPHA_BLEND_SRC_DESTCOLOR (8 << 16)
# define R128_ALPHA_BLEND_SRC_INVDESTCOLOR (9 << 16)
# define R128_ALPHA_BLEND_SRC_SRCALPHASAT (10 << 16)
# define R128_ALPHA_BLEND_SRC_BOTHSRCALPHA (11 << 16)
# define R128_ALPHA_BLEND_SRC_BOTHINVSRCALPHA (12 << 16)
# define R128_ALPHA_BLEND_SRC_MASK (15 << 16)
# define R128_ALPHA_BLEND_DST_ZERO (0 << 20)
# define R128_ALPHA_BLEND_DST_ONE (1 << 20)
# define R128_ALPHA_BLEND_DST_SRCCOLOR (2 << 20)
# define R128_ALPHA_BLEND_DST_INVSRCCOLOR (3 << 20)
# define R128_ALPHA_BLEND_DST_SRCALPHA (4 << 20)
# define R128_ALPHA_BLEND_DST_INVSRCALPHA (5 << 20)
# define R128_ALPHA_BLEND_DST_DESTALPHA (6 << 20)
# define R128_ALPHA_BLEND_DST_INVDESTALPHA (7 << 20)
# define R128_ALPHA_BLEND_DST_DESTCOLOR (8 << 20)
# define R128_ALPHA_BLEND_DST_INVDESTCOLOR (9 << 20)
# define R128_ALPHA_BLEND_DST_SRCALPHASAT (10 << 20)
# define R128_ALPHA_BLEND_DST_MASK (15 << 20)
# define R128_ALPHA_TEST_NEVER (0 << 24)
# define R128_ALPHA_TEST_LESS (1 << 24)
# define R128_ALPHA_TEST_LESSEQUAL (2 << 24)
# define R128_ALPHA_TEST_EQUAL (3 << 24)
# define R128_ALPHA_TEST_GREATEREQUAL (4 << 24)
# define R128_ALPHA_TEST_GREATER (5 << 24)
# define R128_ALPHA_TEST_NEQUAL (6 << 24)
# define R128_ALPHA_TEST_ALWAYS (7 << 24)
# define R128_ALPHA_TEST_MASK (7 << 24)
/* Bits [14:12] are the same as R128_SCALE_3D_CNTL */
/* Bit [15] is unknown */
/* Bits [26:16] are the same as R128_SCALE_3D_CNTL */
/* Bits [31:27] are unknown */
#define R128_TEXTURE_CLR_CMP_CLR_C 0x1ca4
#define R128_TEXTURE_CLR_CMP_MSK_C 0x1ca8
#define R128_FOG_COLOR_C 0x1cac