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Diffstat (limited to 'src/mesa/swrast/s_texcombine.c')
-rw-r--r--src/mesa/swrast/s_texcombine.c401
1 files changed, 5 insertions, 396 deletions
diff --git a/src/mesa/swrast/s_texcombine.c b/src/mesa/swrast/s_texcombine.c
index ef2db0dc7e..2c694c25cb 100644
--- a/src/mesa/swrast/s_texcombine.c
+++ b/src/mesa/swrast/s_texcombine.c
@@ -29,7 +29,6 @@
#include "main/colormac.h"
#include "main/image.h"
#include "main/imports.h"
-#include "main/macros.h"
#include "main/pixel.h"
#include "shader/prog_instruction.h"
@@ -92,8 +91,6 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n,
GLfloat rgba[MAX_WIDTH][4];
GLuint i, term;
- ASSERT(CONST_SWRAST_CONTEXT(ctx)->_AnyTextureCombine);
-
for (i = 0; i < n; i++) {
rgba[i][RCOMP] = CHAN_TO_FLOAT(rgbaChan[i][RCOMP]);
rgba[i][GCOMP] = CHAN_TO_FLOAT(rgbaChan[i][GCOMP]);
@@ -535,7 +532,6 @@ 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.
@@ -567,382 +563,6 @@ swizzle_texels(GLuint swizzle, GLuint count, float4_array texels)
/**
- * 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
- * format - base internal texture format
- * n - number of fragments
- * texels - array of texel colors
- * InOut: rgba - incoming fragment colors modified by texel colors
- * according to the texture environment mode.
- */
-static void
-texture_apply( const GLcontext *ctx,
- const struct gl_texture_unit *texUnit,
- GLuint n,
- float4_array texel,
- GLchan rgbaChan[][4] )
-{
- GLint baseLevel;
- GLuint i;
- GLfloat Rc, Gc, Bc, Ac;
- GLenum format;
- GLfloat rgba[MAX_WIDTH][4];
-
- ASSERT(texUnit);
- ASSERT(texUnit->_Current);
-
- baseLevel = texUnit->_Current->BaseLevel;
- ASSERT(texUnit->_Current->Image[0][baseLevel]);
-
- format = texUnit->_Current->Image[0][baseLevel]->_BaseFormat;
-
- if (format == GL_COLOR_INDEX || format == GL_YCBCR_MESA) {
- format = GL_RGBA; /* a bit of a hack */
- }
- else if (format == GL_DEPTH_COMPONENT || format == GL_DEPTH_STENCIL_EXT) {
- format = texUnit->_Current->DepthMode;
- }
-
- /* skip chan->float conversion when not needed */
- if (texUnit->EnvMode != GL_REPLACE || format != GL_RGBA) {
- /* convert GLchan colors to GLfloat */
- for (i = 0; i < n; i++) {
- rgba[i][RCOMP] = CHAN_TO_FLOAT(rgbaChan[i][RCOMP]);
- rgba[i][GCOMP] = CHAN_TO_FLOAT(rgbaChan[i][GCOMP]);
- rgba[i][BCOMP] = CHAN_TO_FLOAT(rgbaChan[i][BCOMP]);
- rgba[i][ACOMP] = CHAN_TO_FLOAT(rgbaChan[i][ACOMP]);
- }
- }
-
- switch (texUnit->EnvMode) {
- case GL_REPLACE:
- switch (format) {
- case GL_ALPHA:
- for (i=0;i<n;i++) {
- /* Cv = Cf */
- /* Av = At */
- rgba[i][ACOMP] = texel[i][ACOMP];
- }
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++) {
- /* Cv = Lt */
- GLfloat Lt = texel[i][RCOMP];
- rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = Lt;
- /* Av = Af */
- }
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- GLfloat Lt = texel[i][RCOMP];
- /* Cv = Lt */
- rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = Lt;
- /* Av = At */
- rgba[i][ACOMP] = texel[i][ACOMP];
- }
- break;
- case GL_INTENSITY:
- for (i=0;i<n;i++) {
- /* Cv = It */
- GLfloat It = texel[i][RCOMP];
- rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = It;
- /* Av = It */
- rgba[i][ACOMP] = It;
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- /* Cv = Ct */
- rgba[i][RCOMP] = texel[i][RCOMP];
- rgba[i][GCOMP] = texel[i][GCOMP];
- rgba[i][BCOMP] = texel[i][BCOMP];
- /* Av = Af */
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- /* Cv = Ct */
- rgba[i][RCOMP] = texel[i][RCOMP];
- rgba[i][GCOMP] = texel[i][GCOMP];
- rgba[i][BCOMP] = texel[i][BCOMP];
- /* Av = At */
- rgba[i][ACOMP] = texel[i][ACOMP];
- }
- break;
- default:
- _mesa_problem(ctx, "Bad format (GL_REPLACE) in texture_apply");
- return;
- }
- break;
-
- case GL_MODULATE:
- switch (format) {
- case GL_ALPHA:
- for (i=0;i<n;i++) {
- /* Cv = Cf */
- /* Av = AfAt */
- rgba[i][ACOMP] = rgba[i][ACOMP] * texel[i][ACOMP];
- }
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++) {
- /* Cv = LtCf */
- GLfloat Lt = texel[i][RCOMP];
- rgba[i][RCOMP] = rgba[i][RCOMP] * Lt;
- rgba[i][GCOMP] = rgba[i][GCOMP] * Lt;
- rgba[i][BCOMP] = rgba[i][BCOMP] * Lt;
- /* Av = Af */
- }
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- /* Cv = CfLt */
- GLfloat Lt = texel[i][RCOMP];
- rgba[i][RCOMP] = rgba[i][RCOMP] * Lt;
- rgba[i][GCOMP] = rgba[i][GCOMP] * Lt;
- rgba[i][BCOMP] = rgba[i][BCOMP] * Lt;
- /* Av = AfAt */
- rgba[i][ACOMP] = rgba[i][ACOMP] * texel[i][ACOMP];
- }
- break;
- case GL_INTENSITY:
- for (i=0;i<n;i++) {
- /* Cv = CfIt */
- GLfloat It = texel[i][RCOMP];
- rgba[i][RCOMP] = rgba[i][RCOMP] * It;
- rgba[i][GCOMP] = rgba[i][GCOMP] * It;
- rgba[i][BCOMP] = rgba[i][BCOMP] * It;
- /* Av = AfIt */
- rgba[i][ACOMP] = rgba[i][ACOMP] * It;
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- /* Cv = CfCt */
- rgba[i][RCOMP] = rgba[i][RCOMP] * texel[i][RCOMP];
- rgba[i][GCOMP] = rgba[i][GCOMP] * texel[i][GCOMP];
- rgba[i][BCOMP] = rgba[i][BCOMP] * texel[i][BCOMP];
- /* Av = Af */
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- /* Cv = CfCt */
- rgba[i][RCOMP] = rgba[i][RCOMP] * texel[i][RCOMP];
- rgba[i][GCOMP] = rgba[i][GCOMP] * texel[i][GCOMP];
- rgba[i][BCOMP] = rgba[i][BCOMP] * texel[i][BCOMP];
- /* Av = AfAt */
- rgba[i][ACOMP] = rgba[i][ACOMP] * texel[i][ACOMP];
- }
- break;
- default:
- _mesa_problem(ctx, "Bad format (GL_MODULATE) in texture_apply");
- return;
- }
- break;
-
- case GL_DECAL:
- switch (format) {
- case GL_ALPHA:
- case GL_LUMINANCE:
- case GL_LUMINANCE_ALPHA:
- case GL_INTENSITY:
- /* undefined */
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- /* Cv = Ct */
- rgba[i][RCOMP] = texel[i][RCOMP];
- rgba[i][GCOMP] = texel[i][GCOMP];
- rgba[i][BCOMP] = texel[i][BCOMP];
- /* Av = Af */
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- /* Cv = Cf(1-At) + CtAt */
- GLfloat t = texel[i][ACOMP], s = 1.0F - t;
- rgba[i][RCOMP] = rgba[i][RCOMP] * s + texel[i][RCOMP] * t;
- rgba[i][GCOMP] = rgba[i][GCOMP] * s + texel[i][GCOMP] * t;
- rgba[i][BCOMP] = rgba[i][BCOMP] * s + texel[i][BCOMP] * t;
- /* Av = Af */
- }
- break;
- default:
- _mesa_problem(ctx, "Bad format (GL_DECAL) in texture_apply");
- return;
- }
- break;
-
- case GL_BLEND:
- Rc = texUnit->EnvColor[0];
- Gc = texUnit->EnvColor[1];
- Bc = texUnit->EnvColor[2];
- Ac = texUnit->EnvColor[3];
- switch (format) {
- case GL_ALPHA:
- for (i=0;i<n;i++) {
- /* Cv = Cf */
- /* Av = AfAt */
- rgba[i][ACOMP] = rgba[i][ACOMP] * texel[i][ACOMP];
- }
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++) {
- /* Cv = Cf(1-Lt) + CcLt */
- GLfloat Lt = texel[i][RCOMP], s = 1.0F - Lt;
- rgba[i][RCOMP] = rgba[i][RCOMP] * s + Rc * Lt;
- rgba[i][GCOMP] = rgba[i][GCOMP] * s + Gc * Lt;
- rgba[i][BCOMP] = rgba[i][BCOMP] * s + Bc * Lt;
- /* Av = Af */
- }
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- /* Cv = Cf(1-Lt) + CcLt */
- GLfloat Lt = texel[i][RCOMP], s = 1.0F - Lt;
- rgba[i][RCOMP] = rgba[i][RCOMP] * s + Rc * Lt;
- rgba[i][GCOMP] = rgba[i][GCOMP] * s + Gc * Lt;
- rgba[i][BCOMP] = rgba[i][BCOMP] * s + Bc * Lt;
- /* Av = AfAt */
- rgba[i][ACOMP] = rgba[i][ACOMP] * texel[i][ACOMP];
- }
- break;
- case GL_INTENSITY:
- for (i=0;i<n;i++) {
- /* Cv = Cf(1-It) + CcIt */
- GLfloat It = texel[i][RCOMP], s = 1.0F - It;
- rgba[i][RCOMP] = rgba[i][RCOMP] * s + Rc * It;
- rgba[i][GCOMP] = rgba[i][GCOMP] * s + Gc * It;
- rgba[i][BCOMP] = rgba[i][BCOMP] * s + Bc * It;
- /* Av = Af(1-It) + Ac*It */
- rgba[i][ACOMP] = rgba[i][ACOMP] * s + Ac * It;
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- /* Cv = Cf(1-Ct) + CcCt */
- rgba[i][RCOMP] = rgba[i][RCOMP] * (1.0F - texel[i][RCOMP])
- + Rc * texel[i][RCOMP];
- rgba[i][GCOMP] = rgba[i][GCOMP] * (1.0F - texel[i][GCOMP])
- + Gc * texel[i][GCOMP];
- rgba[i][BCOMP] = rgba[i][BCOMP] * (1.0F - texel[i][BCOMP])
- + Bc * texel[i][BCOMP];
- /* Av = Af */
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- /* Cv = Cf(1-Ct) + CcCt */
- rgba[i][RCOMP] = rgba[i][RCOMP] * (1.0F - texel[i][RCOMP])
- + Rc * texel[i][RCOMP];
- rgba[i][GCOMP] = rgba[i][GCOMP] * (1.0F - texel[i][GCOMP])
- + Gc * texel[i][GCOMP];
- rgba[i][BCOMP] = rgba[i][BCOMP] * (1.0F - texel[i][BCOMP])
- + Bc * texel[i][BCOMP];
- /* Av = AfAt */
- rgba[i][ACOMP] = rgba[i][ACOMP] * texel[i][ACOMP];
- }
- break;
- default:
- _mesa_problem(ctx, "Bad format (GL_BLEND) in texture_apply");
- return;
- }
- break;
-
- case GL_ADD: /* GL_EXT_texture_add_env */
- switch (format) {
- case GL_ALPHA:
- for (i=0;i<n;i++) {
- /* Rv = Rf */
- /* Gv = Gf */
- /* Bv = Bf */
- rgba[i][ACOMP] = rgba[i][ACOMP] * texel[i][ACOMP];
- }
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++) {
- GLfloat Lt = texel[i][RCOMP];
- GLfloat r = rgba[i][RCOMP] + Lt;
- GLfloat g = rgba[i][GCOMP] + Lt;
- GLfloat b = rgba[i][BCOMP] + Lt;
- rgba[i][RCOMP] = MIN2(r, 1.0F);
- rgba[i][GCOMP] = MIN2(g, 1.0F);
- rgba[i][BCOMP] = MIN2(b, 1.0F);
- /* Av = Af */
- }
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- GLfloat Lt = texel[i][RCOMP];
- GLfloat r = rgba[i][RCOMP] + Lt;
- GLfloat g = rgba[i][GCOMP] + Lt;
- GLfloat b = rgba[i][BCOMP] + Lt;
- rgba[i][RCOMP] = MIN2(r, 1.0F);
- rgba[i][GCOMP] = MIN2(g, 1.0F);
- rgba[i][BCOMP] = MIN2(b, 1.0F);
- rgba[i][ACOMP] = rgba[i][ACOMP] * texel[i][ACOMP];
- }
- break;
- case GL_INTENSITY:
- for (i=0;i<n;i++) {
- GLfloat It = texel[i][RCOMP];
- GLfloat r = rgba[i][RCOMP] + It;
- GLfloat g = rgba[i][GCOMP] + It;
- GLfloat b = rgba[i][BCOMP] + It;
- GLfloat a = rgba[i][ACOMP] + It;
- rgba[i][RCOMP] = MIN2(r, 1.0F);
- rgba[i][GCOMP] = MIN2(g, 1.0F);
- rgba[i][BCOMP] = MIN2(b, 1.0F);
- rgba[i][ACOMP] = MIN2(a, 1.0F);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- GLfloat r = rgba[i][RCOMP] + texel[i][RCOMP];
- GLfloat g = rgba[i][GCOMP] + texel[i][GCOMP];
- GLfloat b = rgba[i][BCOMP] + texel[i][BCOMP];
- rgba[i][RCOMP] = MIN2(r, 1.0F);
- rgba[i][GCOMP] = MIN2(g, 1.0F);
- rgba[i][BCOMP] = MIN2(b, 1.0F);
- /* Av = Af */
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- GLfloat r = rgba[i][RCOMP] + texel[i][RCOMP];
- GLfloat g = rgba[i][GCOMP] + texel[i][GCOMP];
- GLfloat b = rgba[i][BCOMP] + texel[i][BCOMP];
- rgba[i][RCOMP] = MIN2(r, 1.0F);
- rgba[i][GCOMP] = MIN2(g, 1.0F);
- rgba[i][BCOMP] = MIN2(b, 1.0F);
- rgba[i][ACOMP] = rgba[i][ACOMP] * texel[i][ACOMP];
- }
- break;
- default:
- _mesa_problem(ctx, "Bad format (GL_ADD) in texture_apply");
- return;
- }
- break;
-
- default:
- _mesa_problem(ctx, "Bad env mode in texture_apply");
- return;
- }
-
- /* convert GLfloat colors to GLchan */
- for (i = 0; i < n; i++) {
- CLAMPED_FLOAT_TO_CHAN(rgbaChan[i][RCOMP], rgba[i][RCOMP]);
- CLAMPED_FLOAT_TO_CHAN(rgbaChan[i][GCOMP], rgba[i][GCOMP]);
- CLAMPED_FLOAT_TO_CHAN(rgbaChan[i][BCOMP], rgba[i][BCOMP]);
- CLAMPED_FLOAT_TO_CHAN(rgbaChan[i][ACOMP], rgba[i][ACOMP]);
- }
-}
-
-
-
-/**
* Apply texture mapping to a span of fragments.
*/
void
@@ -957,7 +577,7 @@ _swrast_texture_span( GLcontext *ctx, SWspan *span )
/*
* Save copy of the incoming fragment colors (the GL_PRIMARY_COLOR)
*/
- if (swrast->_AnyTextureCombine) {
+ if (swrast->_TextureCombinePrimary) {
GLuint i;
for (i = 0; i < span->end; i++) {
primary_rgba[i][RCOMP] = CHAN_TO_FLOAT(span->array->rgba[i][RCOMP]);
@@ -1101,27 +721,16 @@ _swrast_texture_span( GLcontext *ctx, SWspan *span )
}
}
-
/*
* OK, now apply the texture (aka texture combine/blend).
* We modify the span->color.rgba values.
*/
for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {
if (ctx->Texture.Unit[unit]._ReallyEnabled) {
- const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
- if (texUnit->_CurrentCombine != &texUnit->_EnvMode ) {
- texture_combine( ctx, unit, span->end,
- primary_rgba,
- swrast->TexelBuffer,
- span->array->rgba );
- }
- else {
- /* conventional texture blend */
- float4_array texels =
- get_texel_array(swrast->TexelBuffer, unit, span->end);
- texture_apply( ctx, texUnit, span->end,
- texels, span->array->rgba );
- }
+ texture_combine( ctx, unit, span->end,
+ primary_rgba,
+ swrast->TexelBuffer,
+ span->array->rgba );
}
}
}
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