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-rw-r--r--src/mesa/drivers/dri/i965/brw_wm.c12
-rw-r--r--src/mesa/main/extensions.c2
-rw-r--r--src/mesa/main/mtypes.h3
-rw-r--r--src/mesa/main/texobj.c9
-rw-r--r--src/mesa/main/texparam.c224
-rw-r--r--src/mesa/swrast/s_fragprog.c75
-rw-r--r--src/mesa/swrast/s_texcombine.c39
-rw-r--r--src/mesa/swrast/s_triangle.c2
8 files changed, 306 insertions, 60 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c
index 24149cf8a1..1683308f44 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.c
+++ b/src/mesa/drivers/dri/i965/brw_wm.c
@@ -233,14 +233,14 @@ static void brw_wm_populate_key( struct brw_context *brw,
/* _NEW_TEXTURE */
for (i = 0; i < BRW_MAX_TEX_UNIT; i++) {
const struct gl_texture_unit *unit = &brw->attribs.Texture->Unit[i];
- const struct gl_texture_object *t = unit->_Current;
if (unit->_ReallyEnabled) {
- if (t->Image[0][t->BaseLevel]->InternalFormat == GL_YCBCR_MESA) {
- key->yuvtex_mask |= 1<<i;
- if (t->Image[0][t->BaseLevel]->TexFormat->MesaFormat ==
- MESA_FORMAT_YCBCR)
- key->yuvtex_swap_mask |= 1<< i;
+ const struct gl_texture_object *t = unit->_Current;
+ const struct gl_texture_image *img = t->Image[0][t->BaseLevel];
+ if (img->InternalFormat == GL_YCBCR_MESA) {
+ key->yuvtex_mask |= 1 << i;
+ if (img->TexFormat->MesaFormat == MESA_FORMAT_YCBCR)
+ key->yuvtex_swap_mask |= 1 << i;
}
}
}
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 0b4cbec648..86144c42ad 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -127,6 +127,7 @@ static const struct {
{ ON, "GL_EXT_texture_object", F(EXT_texture_object) },
{ OFF, "GL_EXT_texture_rectangle", F(NV_texture_rectangle) },
{ OFF, "GL_EXT_texture_sRGB", F(EXT_texture_sRGB) },
+ { OFF, "GL_EXT_texture_swizzle", F(EXT_texture_swizzle) },
{ OFF, "GL_EXT_timer_query", F(EXT_timer_query) },
{ ON, "GL_EXT_vertex_array", F(EXT_vertex_array) },
{ OFF, "GL_EXT_vertex_array_bgra", F(EXT_vertex_array_bgra) },
@@ -273,6 +274,7 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
#if FEATURE_EXT_texture_sRGB
ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
#endif
+ ctx->Extensions.EXT_texture_swizzle = GL_TRUE;
ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE;
ctx->Extensions.IBM_multimode_draw_arrays = GL_TRUE;
ctx->Extensions.MESA_pack_invert = GL_TRUE;
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index b09c5910f8..8ab0d26f45 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1446,6 +1446,8 @@ struct gl_texture_object
GLint _MaxLevel; /**< actual max mipmap level (q in the spec) */
GLfloat _MaxLambda; /**< = _MaxLevel - BaseLevel (q - b in spec) */
GLint CropRect[4]; /**< GL_OES_draw_texture */
+ GLenum Swizzle[4]; /**< GL_EXT_texture_swizzle */
+ GLuint _Swizzle; /**< same as Swizzle, but SWIZZLE_* format */
GLboolean GenerateMipmap; /**< GL_SGIS_generate_mipmap */
GLboolean _Complete; /**< Is texture object complete? */
@@ -2621,6 +2623,7 @@ struct gl_extensions
GLboolean EXT_texture_lod_bias;
GLboolean EXT_texture_mirror_clamp;
GLboolean EXT_texture_sRGB;
+ GLboolean EXT_texture_swizzle;
GLboolean EXT_timer_query;
GLboolean EXT_vertex_array;
GLboolean EXT_vertex_array_bgra;
diff --git a/src/mesa/main/texobj.c b/src/mesa/main/texobj.c
index 7848f0be35..fad39a0634 100644
--- a/src/mesa/main/texobj.c
+++ b/src/mesa/main/texobj.c
@@ -42,6 +42,8 @@
#include "texstate.h"
#include "texobj.h"
#include "mtypes.h"
+#include "shader/prog_instruction.h"
+
/**********************************************************************/
@@ -138,6 +140,11 @@ _mesa_initialize_texture_object( struct gl_texture_object *obj,
obj->CompareFunc = GL_LEQUAL; /* ARB_shadow */
obj->DepthMode = GL_LUMINANCE; /* ARB_depth_texture */
obj->ShadowAmbient = 0.0F; /* ARB/SGIX_shadow_ambient */
+ obj->Swizzle[0] = GL_RED;
+ obj->Swizzle[1] = GL_GREEN;
+ obj->Swizzle[2] = GL_BLUE;
+ obj->Swizzle[3] = GL_ALPHA;
+ obj->_Swizzle = SWIZZLE_NOOP;
}
@@ -252,6 +259,8 @@ _mesa_copy_texture_object( struct gl_texture_object *dest,
dest->GenerateMipmap = src->GenerateMipmap;
dest->Palette = src->Palette;
dest->_Complete = src->_Complete;
+ COPY_4V(dest->Swizzle, src->Swizzle);
+ dest->_Swizzle = src->_Swizzle;
}
diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index 2322d84975..41c914e5b3 100644
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -38,6 +38,7 @@
#include "main/texcompress.h"
#include "main/texparam.h"
#include "main/teximage.h"
+#include "shader/prog_instruction.h"
/**
@@ -125,6 +126,45 @@ get_texobj(GLcontext *ctx, GLenum target)
}
+/**
+ * Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE.
+ * \return -1 if error.
+ */
+static GLint
+comp_to_swizzle(GLenum comp)
+{
+ switch (comp) {
+ case GL_RED:
+ return SWIZZLE_X;
+ case GL_GREEN:
+ return SWIZZLE_Y;
+ case GL_BLUE:
+ return SWIZZLE_Z;
+ case GL_ALPHA:
+ return SWIZZLE_W;
+ case GL_ZERO:
+ return SWIZZLE_ZERO;
+ case GL_ONE:
+ return SWIZZLE_ONE;
+ default:
+ return -1;
+ }
+}
+
+
+static void
+set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz)
+{
+ ASSERT(comp < 4);
+ ASSERT(swz <= SWIZZLE_NIL);
+ {
+ GLuint mask = 0x7 << (3 * comp);
+ GLuint s = (*swizzle & ~mask) | (swz << (3 * comp));
+ *swizzle = s;
+ }
+}
+
+
/** Set an integer-valued texture parameter */
static void
set_tex_parameteri(GLcontext *ctx,
@@ -318,9 +358,53 @@ set_tex_parameteri(GLcontext *ctx,
texObj->CropRect[1] = params[1];
texObj->CropRect[2] = params[2];
texObj->CropRect[3] = params[3];
- break;
+ return;
#endif
+ case GL_TEXTURE_SWIZZLE_R_EXT:
+ case GL_TEXTURE_SWIZZLE_G_EXT:
+ case GL_TEXTURE_SWIZZLE_B_EXT:
+ case GL_TEXTURE_SWIZZLE_A_EXT:
+ if (ctx->Extensions.EXT_texture_swizzle) {
+ const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
+ const GLint swz = comp_to_swizzle(params[0]);
+ if (swz < 0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexParameter(swizzle 0x%x)", params[0]);
+ return;
+ }
+ ASSERT(comp < 4);
+ if (swz >= 0) {
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ texObj->Swizzle[comp] = params[0];
+ set_swizzle_component(&texObj->_Swizzle, comp, swz);
+ return;
+ }
+ }
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
+ return;
+
+ case GL_TEXTURE_SWIZZLE_RGBA_EXT:
+ if (ctx->Extensions.EXT_texture_swizzle) {
+ GLuint comp;
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ for (comp = 0; comp < 4; comp++) {
+ const GLint swz = comp_to_swizzle(params[comp]);
+ if (swz >= 0) {
+ texObj->Swizzle[comp] = params[comp];
+ set_swizzle_component(&texObj->_Swizzle, comp, swz);
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexParameter(swizzle 0x%x)", params[comp]);
+ return;
+ }
+ }
+ return;
+ }
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
+ return;
+
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
}
@@ -974,63 +1058,63 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
*params = obj->MaxAnisotropy;
}
else
- error = 1;
+ error = GL_TRUE;
break;
case GL_TEXTURE_COMPARE_SGIX:
if (ctx->Extensions.SGIX_shadow) {
*params = (GLfloat) obj->CompareFlag;
}
else
- error = 1;
+ error = GL_TRUE;
break;
case GL_TEXTURE_COMPARE_OPERATOR_SGIX:
if (ctx->Extensions.SGIX_shadow) {
*params = (GLfloat) obj->CompareOperator;
}
else
- error = 1;
+ error = GL_TRUE;
break;
case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */
if (ctx->Extensions.SGIX_shadow_ambient) {
*params = obj->ShadowAmbient;
}
else
- error = 1;
+ error = GL_TRUE;
break;
case GL_GENERATE_MIPMAP_SGIS:
if (ctx->Extensions.SGIS_generate_mipmap) {
*params = (GLfloat) obj->GenerateMipmap;
}
else
- error = 1;
+ error = GL_TRUE;
break;
case GL_TEXTURE_COMPARE_MODE_ARB:
if (ctx->Extensions.ARB_shadow) {
*params = (GLfloat) obj->CompareMode;
}
else
- error = 1;
+ error = GL_TRUE;
break;
case GL_TEXTURE_COMPARE_FUNC_ARB:
if (ctx->Extensions.ARB_shadow) {
*params = (GLfloat) obj->CompareFunc;
}
else
- error = 1;
+ error = GL_TRUE;
break;
case GL_DEPTH_TEXTURE_MODE_ARB:
if (ctx->Extensions.ARB_depth_texture) {
*params = (GLfloat) obj->DepthMode;
}
else
- error = 1;
+ error = GL_TRUE;
break;
case GL_TEXTURE_LOD_BIAS:
if (ctx->Extensions.EXT_texture_lod_bias) {
*params = obj->LodBias;
}
else
- error = 1;
+ error = GL_TRUE;
break;
#ifdef FEATURE_OES_draw_texture
case GL_TEXTURE_CROP_RECT_OES:
@@ -1040,10 +1124,37 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
params[3] = obj->CropRect[3];
break;
#endif
+
+ case GL_TEXTURE_SWIZZLE_R_EXT:
+ case GL_TEXTURE_SWIZZLE_G_EXT:
+ case GL_TEXTURE_SWIZZLE_B_EXT:
+ case GL_TEXTURE_SWIZZLE_A_EXT:
+ if (ctx->Extensions.EXT_texture_swizzle) {
+ GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
+ *params = (GLfloat) obj->Swizzle[comp];
+ }
+ else {
+ error = GL_TRUE;
+ }
+ break;
+
+ case GL_TEXTURE_SWIZZLE_RGBA_EXT:
+ if (ctx->Extensions.EXT_texture_swizzle) {
+ GLuint comp;
+ for (comp = 0; comp < 4; comp++) {
+ params[comp] = (GLfloat) obj->Swizzle[comp];
+ }
+ }
+ else {
+ error = GL_TRUE;
+ }
+ break;
+
default:
- error = 1;
+ error = GL_TRUE;
break;
}
+
if (error)
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)",
pname);
@@ -1057,6 +1168,7 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
{
struct gl_texture_unit *texUnit;
struct gl_texture_object *obj;
+ GLboolean error = GL_FALSE;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
@@ -1077,19 +1189,19 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
switch (pname) {
case GL_TEXTURE_MAG_FILTER:
*params = (GLint) obj->MagFilter;
- return;
+ break;;
case GL_TEXTURE_MIN_FILTER:
*params = (GLint) obj->MinFilter;
- return;
+ break;;
case GL_TEXTURE_WRAP_S:
*params = (GLint) obj->WrapS;
- return;
+ break;;
case GL_TEXTURE_WRAP_T:
*params = (GLint) obj->WrapT;
- return;
+ break;;
case GL_TEXTURE_WRAP_R:
*params = (GLint) obj->WrapR;
- return;
+ break;;
case GL_TEXTURE_BORDER_COLOR:
{
GLfloat b[4];
@@ -1102,7 +1214,7 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
params[2] = FLOAT_TO_INT(b[2]);
params[3] = FLOAT_TO_INT(b[3]);
}
- return;
+ break;;
case GL_TEXTURE_RESIDENT:
{
GLboolean resident;
@@ -1112,74 +1224,92 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
resident = GL_TRUE;
*params = (GLint) resident;
}
- return;
+ break;;
case GL_TEXTURE_PRIORITY:
*params = FLOAT_TO_INT(obj->Priority);
- return;
+ break;;
case GL_TEXTURE_MIN_LOD:
*params = (GLint) obj->MinLod;
- return;
+ break;;
case GL_TEXTURE_MAX_LOD:
*params = (GLint) obj->MaxLod;
- return;
+ break;;
case GL_TEXTURE_BASE_LEVEL:
*params = obj->BaseLevel;
- return;
+ break;;
case GL_TEXTURE_MAX_LEVEL:
*params = obj->MaxLevel;
- return;
+ break;;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
if (ctx->Extensions.EXT_texture_filter_anisotropic) {
*params = (GLint) obj->MaxAnisotropy;
- return;
+ }
+ else {
+ error = GL_TRUE;
}
break;
case GL_TEXTURE_COMPARE_SGIX:
if (ctx->Extensions.SGIX_shadow) {
*params = (GLint) obj->CompareFlag;
- return;
+ }
+ else {
+ error = GL_TRUE;
}
break;
case GL_TEXTURE_COMPARE_OPERATOR_SGIX:
if (ctx->Extensions.SGIX_shadow) {
*params = (GLint) obj->CompareOperator;
- return;
+ }
+ else {
+ error = GL_TRUE;
}
break;
case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */
if (ctx->Extensions.SGIX_shadow_ambient) {
*params = (GLint) FLOAT_TO_INT(obj->ShadowAmbient);
- return;
+ }
+ else {
+ error = GL_TRUE;
}
break;
case GL_GENERATE_MIPMAP_SGIS:
if (ctx->Extensions.SGIS_generate_mipmap) {
*params = (GLint) obj->GenerateMipmap;
- return;
+ }
+ else {
+ error = GL_TRUE;
}
break;
case GL_TEXTURE_COMPARE_MODE_ARB:
if (ctx->Extensions.ARB_shadow) {
*params = (GLint) obj->CompareMode;
- return;
+ }
+ else {
+ error = GL_TRUE;
}
break;
case GL_TEXTURE_COMPARE_FUNC_ARB:
if (ctx->Extensions.ARB_shadow) {
*params = (GLint) obj->CompareFunc;
- return;
+ }
+ else {
+ error = GL_TRUE;
}
break;
case GL_DEPTH_TEXTURE_MODE_ARB:
if (ctx->Extensions.ARB_depth_texture) {
*params = (GLint) obj->DepthMode;
- return;
+ }
+ else {
+ error = GL_TRUE;
}
break;
case GL_TEXTURE_LOD_BIAS:
if (ctx->Extensions.EXT_texture_lod_bias) {
*params = (GLint) obj->LodBias;
- return;
+ }
+ else {
+ error = GL_TRUE;
}
break;
#ifdef FEATURE_OES_draw_texture
@@ -1190,9 +1320,35 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
params[3] = obj->CropRect[3];
break;
#endif
+ case GL_TEXTURE_SWIZZLE_R_EXT:
+ case GL_TEXTURE_SWIZZLE_G_EXT:
+ case GL_TEXTURE_SWIZZLE_B_EXT:
+ case GL_TEXTURE_SWIZZLE_A_EXT:
+ if (ctx->Extensions.EXT_texture_swizzle) {
+ GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
+ *params = obj->Swizzle[comp];
+ }
+ else {
+ error = GL_TRUE;
+ }
+ break;
+
+ case GL_TEXTURE_SWIZZLE_RGBA_EXT:
+ if (ctx->Extensions.EXT_texture_swizzle) {
+ COPY_4V(params, obj->Swizzle);
+ }
+ else {
+ error = GL_TRUE;
+ }
+ break;
+
default:
; /* silence warnings */
}
- /* If we get here, pname was an unrecognized enum */
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)", pname);
+
+ if (error)
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)",
+ pname);
+
+ _mesa_unlock_texture(ctx, obj);
}
diff --git a/src/mesa/swrast/s_fragprog.c b/src/mesa/swrast/s_fragprog.c
index 525cf9d724..58ef91ec01 100644
--- a/src/mesa/swrast/s_fragprog.c
+++ b/src/mesa/swrast/s_fragprog.c
@@ -33,6 +33,35 @@
/**
+ * Apply texture object's swizzle (X/Y/Z/W/0/1) to incoming 'texel'
+ * and return results in 'colorOut'.
+ */
+static INLINE void
+swizzle_texel(const GLchan texel[4], GLfloat colorOut[4], GLuint swizzle)
+{
+ if (swizzle == SWIZZLE_NOOP) {
+ colorOut[0] = CHAN_TO_FLOAT(texel[0]);
+ colorOut[1] = CHAN_TO_FLOAT(texel[1]);
+ colorOut[2] = CHAN_TO_FLOAT(texel[2]);
+ colorOut[3] = CHAN_TO_FLOAT(texel[3]);
+ }
+ else {
+ GLfloat vector[6];
+ vector[SWIZZLE_X] = CHAN_TO_FLOAT(texel[0]);
+ vector[SWIZZLE_Y] = CHAN_TO_FLOAT(texel[1]);
+ vector[SWIZZLE_Z] = CHAN_TO_FLOAT(texel[2]);
+ vector[SWIZZLE_W] = CHAN_TO_FLOAT(texel[3]);
+ vector[SWIZZLE_ZERO] = 0.0F;
+ vector[SWIZZLE_ONE] = 1.0F;
+ colorOut[0] = vector[GET_SWZ(swizzle, 0)];
+ colorOut[1] = vector[GET_SWZ(swizzle, 1)];
+ colorOut[2] = vector[GET_SWZ(swizzle, 2)];
+ colorOut[3] = vector[GET_SWZ(swizzle, 3)];
+ }
+}
+
+
+/**
* Fetch a texel with given lod.
* Called via machine->FetchTexelLod()
*/
@@ -40,20 +69,23 @@ static void
fetch_texel_lod( GLcontext *ctx, const GLfloat texcoord[4], GLfloat lambda,
GLuint unit, GLfloat color[4] )
{
- GLchan rgba[4];
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
const struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current;
- if (texObj)
+ if (texObj) {
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ GLchan rgba[4];
+
lambda = CLAMP(lambda, texObj->MinLod, texObj->MaxLod);
- /* XXX use a float-valued TextureSample routine here!!! */
- swrast->TextureSample[unit](ctx, texObj, 1, (const GLfloat (*)[4]) texcoord,
- &lambda, &rgba);
- color[0] = CHAN_TO_FLOAT(rgba[0]);
- color[1] = CHAN_TO_FLOAT(rgba[1]);
- color[2] = CHAN_TO_FLOAT(rgba[2]);
- color[3] = CHAN_TO_FLOAT(rgba[3]);
+ /* XXX use a float-valued TextureSample routine here!!! */
+ swrast->TextureSample[unit](ctx, texObj, 1,
+ (const GLfloat (*)[4]) texcoord,
+ &lambda, &rgba);
+ swizzle_texel(rgba, color, texObj->_Swizzle);
+ }
+ else {
+ color[0] = color[1] = color[2] = color[3] = 0.0F;
+ }
}
@@ -69,13 +101,14 @@ fetch_texel_deriv( GLcontext *ctx, const GLfloat texcoord[4],
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
const struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current;
- GLfloat lambda;
- GLchan rgba[4];
if (texObj) {
- const struct gl_texture_image *texImg = texObj->Image[0][texObj->BaseLevel];
+ const struct gl_texture_image *texImg =
+ texObj->Image[0][texObj->BaseLevel];
const GLfloat texW = (GLfloat) texImg->WidthScale;
const GLfloat texH = (GLfloat) texImg->HeightScale;
+ GLfloat lambda;
+ GLchan rgba[4];
lambda = _swrast_compute_lambda(texdx[0], texdy[0], /* ds/dx, ds/dy */
texdx[1], texdy[1], /* dt/dx, dt/dy */
@@ -85,14 +118,16 @@ fetch_texel_deriv( GLcontext *ctx, const GLfloat texcoord[4],
1.0F / texcoord[3]) + lodBias;
lambda = CLAMP(lambda, texObj->MinLod, texObj->MaxLod);
- }
- swrast->TextureSample[unit](ctx, texObj, 1, (const GLfloat (*)[4]) texcoord,
- &lambda, &rgba);
- color[0] = CHAN_TO_FLOAT(rgba[0]);
- color[1] = CHAN_TO_FLOAT(rgba[1]);
- color[2] = CHAN_TO_FLOAT(rgba[2]);
- color[3] = CHAN_TO_FLOAT(rgba[3]);
+ /* XXX use a float-valued TextureSample routine here!!! */
+ swrast->TextureSample[unit](ctx, texObj, 1,
+ (const GLfloat (*)[4]) texcoord,
+ &lambda, &rgba);
+ swizzle_texel(rgba, color, texObj->_Swizzle);
+ }
+ else {
+ color[0] = color[1] = color[2] = color[3] = 0.0F;
+ }
}
diff --git a/src/mesa/swrast/s_texcombine.c b/src/mesa/swrast/s_texcombine.c
index df6efad66c..1b8775bf30 100644
--- a/src/mesa/swrast/s_texcombine.c
+++ b/src/mesa/swrast/s_texcombine.c
@@ -31,6 +31,7 @@
#include "main/imports.h"
#include "main/macros.h"
#include "main/pixel.h"
+#include "shader/prog_instruction.h"
#include "s_context.h"
#include "s_texcombine.h"
@@ -816,6 +817,36 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n,
/**
+ * Apply X/Y/Z/W/0/1 swizzle to an array of colors/texels.
+ * See GL_EXT_texture_swizzle.
+ */
+static void
+swizzle_texels(GLuint swizzle, GLuint count, GLchan (*texels)[4])
+{
+ const GLuint swzR = GET_SWZ(swizzle, 0);
+ const GLuint swzG = GET_SWZ(swizzle, 1);
+ const GLuint swzB = GET_SWZ(swizzle, 2);
+ const GLuint swzA = GET_SWZ(swizzle, 3);
+ GLchan vector[6];
+ GLuint i;
+
+ vector[SWIZZLE_ZERO] = 0;
+ vector[SWIZZLE_ONE] = CHAN_MAX;
+
+ for (i = 0; i < count; i++) {
+ vector[SWIZZLE_X] = texels[i][0];
+ vector[SWIZZLE_Y] = texels[i][1];
+ vector[SWIZZLE_Z] = texels[i][2];
+ vector[SWIZZLE_W] = texels[i][3];
+ texels[i][RCOMP] = vector[swzR];
+ texels[i][GCOMP] = vector[swzG];
+ texels[i][BCOMP] = vector[swzB];
+ texels[i][ACOMP] = vector[swzA];
+ }
+}
+
+
+/**
* Apply a conventional OpenGL texture env mode (REPLACE, ADD, BLEND,
* MODULATE, or DECAL) to an array of fragments.
* Input: textureUnit - pointer to texture unit to apply
@@ -1241,9 +1272,15 @@ _swrast_texture_span( GLcontext *ctx, SWspan *span )
_mesa_lookup_rgba_float(&texUnit->ColorTable, span->end, texels);
#endif
}
+
+ /* GL_EXT_texture_swizzle */
+ if (curObj->_Swizzle != SWIZZLE_NOOP) {
+ swizzle_texels(curObj->_Swizzle, span->end, texels);
+ }
}
}
+
/*
* OK, now apply the texture (aka texture combine/blend).
* We modify the span->color.rgba values.
@@ -1262,6 +1299,8 @@ _swrast_texture_span( GLcontext *ctx, SWspan *span )
const GLchan (*texels)[4] = (const GLchan (*)[4])
(swrast->TexelBuffer + unit *
(span->end * 4 * sizeof(GLchan)));
+
+
texture_apply( ctx, texUnit, span->end,
(CONST GLchan (*)[4]) primary_rgba, texels,
span->array->rgba );
diff --git a/src/mesa/swrast/s_triangle.c b/src/mesa/swrast/s_triangle.c
index 5d232487f3..063130714c 100644
--- a/src/mesa/swrast/s_triangle.c
+++ b/src/mesa/swrast/s_triangle.c
@@ -35,6 +35,7 @@
#include "main/imports.h"
#include "main/macros.h"
#include "main/texformat.h"
+#include "shader/prog_instruction.h"
#include "s_aatriangle.h"
#include "s_context.h"
@@ -1063,6 +1064,7 @@ _swrast_choose_triangle( GLcontext *ctx )
&& ctx->Texture.Unit[0]._ReallyEnabled == TEXTURE_2D_BIT
&& texObj2D->WrapS == GL_REPEAT
&& texObj2D->WrapT == GL_REPEAT
+ && texObj2D->_Swizzle == SWIZZLE_NOOP
&& texImg->_IsPowerOfTwo
&& texImg->Border == 0
&& texImg->Width == texImg->RowStride
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-12 03:49:00 +0000