/*
* Mesa 3-D graphics library
- * Version: 6.5
+ * Version: 6.5.3
*
- * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
#include "s_aatriangle.h"
#include "s_context.h"
-#include "s_depth.h"
#include "s_feedback.h"
#include "s_span.h"
#include "s_triangle.h"
const SWvertex *v1,
const SWvertex *v2 )
{
- GLfloat ex = v1->win[0] - v0->win[0];
- GLfloat ey = v1->win[1] - v0->win[1];
- GLfloat fx = v2->win[0] - v0->win[0];
- GLfloat fy = v2->win[1] - v0->win[1];
+ GLfloat ex = v1->attrib[FRAG_ATTRIB_WPOS][0] - v0->attrib[FRAG_ATTRIB_WPOS][0];
+ GLfloat ey = v1->attrib[FRAG_ATTRIB_WPOS][1] - v0->attrib[FRAG_ATTRIB_WPOS][1];
+ GLfloat fx = v2->attrib[FRAG_ATTRIB_WPOS][0] - v0->attrib[FRAG_ATTRIB_WPOS][0];
+ GLfloat fy = v2->attrib[FRAG_ATTRIB_WPOS][1] - v0->attrib[FRAG_ATTRIB_WPOS][1];
GLfloat c = ex*fy-ey*fx;
if (c * SWRAST_CONTEXT(ctx)->_BackfaceSign > 0)
/*
- * Render a flat-shaded color index triangle.
+ * Render a smooth or flat-shaded color index triangle.
*/
-#define NAME flat_ci_triangle
+#define NAME ci_triangle
#define INTERP_Z 1
-#define INTERP_FOG 1
-#define SETUP_CODE \
- span.interpMask |= SPAN_INDEX; \
- span.index = FloatToFixed(v2->index);\
- span.indexStep = 0;
-#define RENDER_SPAN( span ) _swrast_write_index_span(ctx, &span);
-#include "s_tritemp.h"
-
-
-
-/*
- * Render a smooth-shaded color index triangle.
- */
-#define NAME smooth_ci_triangle
-#define INTERP_Z 1
-#define INTERP_FOG 1
+#define INTERP_ATTRIBS 1 /* just for fog */
#define INTERP_INDEX 1
#define RENDER_SPAN( span ) _swrast_write_index_span(ctx, &span);
#include "s_tritemp.h"
*/
#define NAME flat_rgba_triangle
#define INTERP_Z 1
-#define INTERP_FOG 1
#define SETUP_CODE \
ASSERT(ctx->Texture._EnabledCoordUnits == 0);\
ASSERT(ctx->Light.ShadeModel==GL_FLAT); \
*/
#define NAME smooth_rgba_triangle
#define INTERP_Z 1
-#define INTERP_FOG 1
#define INTERP_RGB 1
#define INTERP_ALPHA 1
#define SETUP_CODE \
* Render an RGB, GL_DECAL, textured triangle.
* Interpolate S,T only w/out mipmapping or perspective correction.
*
- * No fog.
+ * No fog. No depth testing.
*/
#define NAME simple_textured_triangle
#define INTERP_INT_TEX 1
return; \
}
-#define RENDER_SPAN( span ) \
+#define RENDER_SPAN( span ) \
GLuint i; \
+ GLchan rgb[MAX_WIDTH][3]; \
span.intTex[0] -= FIXED_HALF; /* off-by-one error? */ \
span.intTex[1] -= FIXED_HALF; \
for (i = 0; i < span.end; i++) { \
GLint t = FixedToInt(span.intTex[1]) & tmask; \
GLint pos = (t << twidth_log2) + s; \
pos = pos + pos + pos; /* multiply by 3 */ \
- span.array->rgb[i][RCOMP] = texture[pos]; \
- span.array->rgb[i][GCOMP] = texture[pos+1]; \
- span.array->rgb[i][BCOMP] = texture[pos+2]; \
+ rgb[i][RCOMP] = texture[pos]; \
+ rgb[i][GCOMP] = texture[pos+1]; \
+ rgb[i][BCOMP] = texture[pos+2]; \
span.intTex[0] += span.intTexStep[0]; \
span.intTex[1] += span.intTexStep[1]; \
} \
- rb->PutRowRGB(ctx, rb, span.end, span.x, span.y, span.array->rgb, NULL);
+ rb->PutRowRGB(ctx, rb, span.end, span.x, span.y, rgb, NULL);
#include "s_tritemp.h"
#define RENDER_SPAN( span ) \
GLuint i; \
+ GLchan rgb[MAX_WIDTH][3]; \
span.intTex[0] -= FIXED_HALF; /* off-by-one error? */ \
span.intTex[1] -= FIXED_HALF; \
for (i = 0; i < span.end; i++) { \
GLint t = FixedToInt(span.intTex[1]) & tmask; \
GLint pos = (t << twidth_log2) + s; \
pos = pos + pos + pos; /* multiply by 3 */ \
- span.array->rgb[i][RCOMP] = texture[pos]; \
- span.array->rgb[i][GCOMP] = texture[pos+1]; \
- span.array->rgb[i][BCOMP] = texture[pos+2]; \
+ rgb[i][RCOMP] = texture[pos]; \
+ rgb[i][GCOMP] = texture[pos+1]; \
+ rgb[i][BCOMP] = texture[pos+2]; \
zRow[i] = z; \
span.array->mask[i] = 1; \
} \
span.intTex[1] += span.intTexStep[1]; \
span.z += span.zStep; \
} \
- rb->PutRowRGB(ctx, rb, span.end, span.x, span.y, \
- span.array->rgb, span.array->mask);
+ rb->PutRowRGB(ctx, rb, span.end, span.x, span.y, rgb, span.array->mask);
#include "s_tritemp.h"
-
#if CHAN_TYPE != GL_FLOAT
struct affine_info
* texture env modes.
*/
static INLINE void
-affine_span(GLcontext *ctx, struct sw_span *span,
+affine_span(GLcontext *ctx, SWspan *span,
struct affine_info *info)
{
GLchan sample[4]; /* the filtered texture sample */
*/
#define NAME affine_textured_triangle
#define INTERP_Z 1
-#define INTERP_FOG 1
#define INTERP_RGB 1
#define INTERP_ALPHA 1
#define INTERP_INT_TEX 1
static INLINE void
-fast_persp_span(GLcontext *ctx, struct sw_span *span,
+fast_persp_span(GLcontext *ctx, SWspan *span,
struct persp_info *info)
{
GLchan sample[4]; /* the filtered texture sample */
const GLuint savedTexEnable = ctx->Texture._EnabledUnits;
ctx->Texture._EnabledUnits = 0;
- tex_coord[0] = span->tex[0][0] * (info->smask + 1);
- tex_step[0] = span->texStepX[0][0] * (info->smask + 1);
- tex_coord[1] = span->tex[0][1] * (info->tmask + 1);
- tex_step[1] = span->texStepX[0][1] * (info->tmask + 1);
- /* span->tex[0][2] only if 3D-texturing, here only 2D */
- tex_coord[2] = span->tex[0][3];
- tex_step[2] = span->texStepX[0][3];
+ tex_coord[0] = span->attrStart[FRAG_ATTRIB_TEX0][0] * (info->smask + 1);
+ tex_step[0] = span->attrStepX[FRAG_ATTRIB_TEX0][0] * (info->smask + 1);
+ tex_coord[1] = span->attrStart[FRAG_ATTRIB_TEX0][1] * (info->tmask + 1);
+ tex_step[1] = span->attrStepX[FRAG_ATTRIB_TEX0][1] * (info->tmask + 1);
+ /* span->attrStart[FRAG_ATTRIB_TEX0][2] only if 3D-texturing, here only 2D */
+ tex_coord[2] = span->attrStart[FRAG_ATTRIB_TEX0][3];
+ tex_step[2] = span->attrStepX[FRAG_ATTRIB_TEX0][3];
switch (info->filter) {
case GL_NEAREST:
*/
#define NAME persp_textured_triangle
#define INTERP_Z 1
-#define INTERP_W 1
-#define INTERP_FOG 1
#define INTERP_RGB 1
#define INTERP_ALPHA 1
-#define INTERP_TEX 1
+#define INTERP_ATTRIBS 1
#define SETUP_CODE \
struct persp_info info; \
#include "s_tritemp.h"
+#endif /*CHAN_TYPE != GL_FLOAT*/
-#endif /* CHAN_BITS != GL_FLOAT */
-
-
/*
- * Render a smooth-shaded, textured, RGBA triangle.
- * Interpolate S,T,R with perspective correction, w/out mipmapping.
+ * Render an RGBA triangle with arbitrary attributes.
*/
-#define NAME general_textured_triangle
+#define NAME general_triangle
#define INTERP_Z 1
-#define INTERP_W 1
-#define INTERP_FOG 1
#define INTERP_RGB 1
-#define INTERP_SPEC 1
#define INTERP_ALPHA 1
-#define INTERP_TEX 1
+#define INTERP_ATTRIBS 1
#define RENDER_SPAN( span ) _swrast_write_rgba_span(ctx, &span);
#include "s_tritemp.h"
-/*
- * This is the big one!
- * Interpolate Z, RGB, Alpha, specular, fog, and N sets of texture coordinates.
- * Yup, it's slow.
- */
-#define NAME multitextured_triangle
-#define INTERP_Z 1
-#define INTERP_W 1
-#define INTERP_FOG 1
-#define INTERP_RGB 1
-#define INTERP_ALPHA 1
-#define INTERP_SPEC 1
-#define INTERP_MULTITEX 1
-#define RENDER_SPAN( span ) _swrast_write_rgba_span(ctx, &span);
-#include "s_tritemp.h"
-
-
/*
* Special tri function for occlusion testing
return; \
}
#define RENDER_SPAN( span ) \
- if (ctx->Visual.depthBits <= 16) { \
+ if (rb->DepthBits <= 16) { \
GLuint i; \
const GLushort *zRow = (const GLushort *) \
rb->GetPointer(ctx, rb, span.x, span.y); \
* draw the triangle, then restore the original primary color.
* Inefficient, but seldom needed.
*/
-void _swrast_add_spec_terms_triangle( GLcontext *ctx,
- const SWvertex *v0,
- const SWvertex *v1,
- const SWvertex *v2 )
+void
+_swrast_add_spec_terms_triangle(GLcontext *ctx, const SWvertex *v0,
+ const SWvertex *v1, const SWvertex *v2)
{
SWvertex *ncv0 = (SWvertex *)v0; /* drop const qualifier */
SWvertex *ncv1 = (SWvertex *)v1;
SWvertex *ncv2 = (SWvertex *)v2;
-#if CHAN_TYPE == GL_FLOAT
GLfloat rSum, gSum, bSum;
-#else
- GLint rSum, gSum, bSum;
-#endif
- GLchan c[3][4];
+ GLchan cSave[3][4];
+
/* save original colors */
- COPY_CHAN4( c[0], ncv0->color );
- COPY_CHAN4( c[1], ncv1->color );
- COPY_CHAN4( c[2], ncv2->color );
+ COPY_CHAN4( cSave[0], ncv0->color );
+ COPY_CHAN4( cSave[1], ncv1->color );
+ COPY_CHAN4( cSave[2], ncv2->color );
/* sum v0 */
- rSum = ncv0->color[0] + ncv0->specular[0];
- gSum = ncv0->color[1] + ncv0->specular[1];
- bSum = ncv0->color[2] + ncv0->specular[2];
- ncv0->color[0] = MIN2(rSum, CHAN_MAX);
- ncv0->color[1] = MIN2(gSum, CHAN_MAX);
- ncv0->color[2] = MIN2(bSum, CHAN_MAX);
+ rSum = CHAN_TO_FLOAT(ncv0->color[0]) + ncv0->attrib[FRAG_ATTRIB_COL1][0];
+ gSum = CHAN_TO_FLOAT(ncv0->color[1]) + ncv0->attrib[FRAG_ATTRIB_COL1][1];
+ bSum = CHAN_TO_FLOAT(ncv0->color[2]) + ncv0->attrib[FRAG_ATTRIB_COL1][2];
+ UNCLAMPED_FLOAT_TO_CHAN(ncv0->color[0], rSum);
+ UNCLAMPED_FLOAT_TO_CHAN(ncv0->color[1], gSum);
+ UNCLAMPED_FLOAT_TO_CHAN(ncv0->color[2], bSum);
/* sum v1 */
- rSum = ncv1->color[0] + ncv1->specular[0];
- gSum = ncv1->color[1] + ncv1->specular[1];
- bSum = ncv1->color[2] + ncv1->specular[2];
- ncv1->color[0] = MIN2(rSum, CHAN_MAX);
- ncv1->color[1] = MIN2(gSum, CHAN_MAX);
- ncv1->color[2] = MIN2(bSum, CHAN_MAX);
+ rSum = CHAN_TO_FLOAT(ncv1->color[0]) + ncv1->attrib[FRAG_ATTRIB_COL1][0];
+ gSum = CHAN_TO_FLOAT(ncv1->color[1]) + ncv1->attrib[FRAG_ATTRIB_COL1][1];
+ bSum = CHAN_TO_FLOAT(ncv1->color[2]) + ncv1->attrib[FRAG_ATTRIB_COL1][2];
+ UNCLAMPED_FLOAT_TO_CHAN(ncv1->color[0], rSum);
+ UNCLAMPED_FLOAT_TO_CHAN(ncv1->color[1], gSum);
+ UNCLAMPED_FLOAT_TO_CHAN(ncv1->color[2], bSum);
/* sum v2 */
- rSum = ncv2->color[0] + ncv2->specular[0];
- gSum = ncv2->color[1] + ncv2->specular[1];
- bSum = ncv2->color[2] + ncv2->specular[2];
- ncv2->color[0] = MIN2(rSum, CHAN_MAX);
- ncv2->color[1] = MIN2(gSum, CHAN_MAX);
- ncv2->color[2] = MIN2(bSum, CHAN_MAX);
+ rSum = CHAN_TO_FLOAT(ncv2->color[0]) + ncv2->attrib[FRAG_ATTRIB_COL1][0];
+ gSum = CHAN_TO_FLOAT(ncv2->color[1]) + ncv2->attrib[FRAG_ATTRIB_COL1][1];
+ bSum = CHAN_TO_FLOAT(ncv2->color[2]) + ncv2->attrib[FRAG_ATTRIB_COL1][2];
+ UNCLAMPED_FLOAT_TO_CHAN(ncv2->color[0], rSum);
+ UNCLAMPED_FLOAT_TO_CHAN(ncv2->color[1], gSum);
+ UNCLAMPED_FLOAT_TO_CHAN(ncv2->color[2], bSum);
/* draw */
SWRAST_CONTEXT(ctx)->SpecTriangle( ctx, ncv0, ncv1, ncv2 );
/* restore original colors */
- COPY_CHAN4( ncv0->color, c[0] );
- COPY_CHAN4( ncv1->color, c[1] );
- COPY_CHAN4( ncv2->color, c[2] );
+ COPY_CHAN4( ncv0->color, cSave[0] );
+ COPY_CHAN4( ncv1->color, cSave[1] );
+ COPY_CHAN4( ncv2->color, cSave[2] );
}
}
}
- if (ctx->Texture._EnabledCoordUnits || ctx->FragmentProgram._Active || ctx->ATIFragmentShader._Enabled) {
+ if (!rgbmode) {
+ USE(ci_triangle);
+ return;
+ }
+
+ /*
+ * XXX should examine swrast->_ActiveAttribMask to determine what
+ * needs to be interpolated.
+ */
+ if (ctx->Texture._EnabledCoordUnits ||
+ ctx->FragmentProgram._Current ||
+ ctx->ATIFragmentShader._Enabled ||
+ NEED_SECONDARY_COLOR(ctx) ||
+ swrast->_FogEnabled) {
/* Ugh, we do a _lot_ of tests to pick the best textured tri func */
- const struct gl_texture_object *texObj2D;
+ const struct gl_texture_object *texObj2D;
const struct gl_texture_image *texImg;
GLenum minFilter, magFilter, envMode;
GLint format;
/* First see if we can use an optimized 2-D texture function */
if (ctx->Texture._EnabledCoordUnits == 0x1
- && !ctx->FragmentProgram._Active
- && !ctx->ATIFragmentShader._Enabled
+ && !ctx->FragmentProgram._Current
+ && !ctx->ATIFragmentShader._Enabled
&& ctx->Texture.Unit[0]._ReallyEnabled == TEXTURE_2D_BIT
&& texObj2D->WrapS == GL_REPEAT
- && texObj2D->WrapT == GL_REPEAT
+ && texObj2D->WrapT == GL_REPEAT
&& texImg->_IsPowerOfTwo
&& texImg->Border == 0
&& texImg->Width == texImg->RowStride
&& (format == MESA_FORMAT_RGB || format == MESA_FORMAT_RGBA)
- && minFilter == magFilter
- && ctx->Light.Model.ColorControl == GL_SINGLE_COLOR
- && ctx->Texture.Unit[0].EnvMode != GL_COMBINE_EXT) {
+ && minFilter == magFilter
+ && ctx->Light.Model.ColorControl == GL_SINGLE_COLOR
+ && !swrast->_FogEnabled
+ && ctx->Texture.Unit[0].EnvMode != GL_COMBINE_EXT) {
if (ctx->Hint.PerspectiveCorrection==GL_FASTEST) {
if (minFilter == GL_NEAREST
&& format == MESA_FORMAT_RGB
&& ctx->Depth.Mask == GL_TRUE)
|| swrast->_RasterMask == TEXTURE_BIT)
&& ctx->Polygon.StippleFlag == GL_FALSE
- && ctx->Visual.depthBits <= 16) {
+ && ctx->DrawBuffer->Visual.depthBits <= 16) {
if (swrast->_RasterMask == (DEPTH_BIT | TEXTURE_BIT)) {
USE(simple_z_textured_triangle);
}
}
}
else {
-#if (CHAN_BITS == 16 || CHAN_BITS == 32)
- USE(general_textured_triangle);
+#if CHAN_BITS != 8
+ USE(general_triangle);
#else
USE(affine_textured_triangle);
#endif
}
}
else {
-#if (CHAN_BITS == 16 || CHAN_BITS == 32)
- USE(general_textured_triangle);
+#if CHAN_BITS != 8
+ USE(general_triangle);
#else
USE(persp_textured_triangle);
#endif
}
else {
/* general case textured triangles */
- if (ctx->Texture._EnabledCoordUnits > 1) {
- USE(multitextured_triangle);
- }
- else {
- USE(general_textured_triangle);
- }
+ USE(general_triangle);
}
}
else {
- ASSERT(!ctx->Texture._EnabledCoordUnits);
+ ASSERT(!swrast->_FogEnabled);
+ ASSERT(!NEED_SECONDARY_COLOR(ctx));
if (ctx->Light.ShadeModel==GL_SMOOTH) {
/* smooth shaded, no texturing, stippled or some raster ops */
- if (rgbmode) {
- USE(smooth_rgba_triangle);
- }
- else {
- USE(smooth_ci_triangle);
- }
+#if CHAN_BITS != 8
+ USE(general_triangle);
+#else
+ USE(smooth_rgba_triangle);
+#endif
}
else {
/* flat shaded, no texturing, stippled or some raster ops */
- if (rgbmode) {
- USE(flat_rgba_triangle);
- }
- else {
- USE(flat_ci_triangle);
- }
+#if CHAN_BITS != 8
+ USE(general_triangle);
+#else
+ USE(flat_rgba_triangle);
+#endif
}
}
}
projects / mesa.git / blobdiff