/*
* Mesa 3-D graphics library
- * Version: 7.1
+ * Version: 7.5
*
* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
*/
#include "glheader.h"
+#include "mfeatures.h"
#include "colormac.h"
#if FEATURE_colortable
#include "colortab.h"
void
_mesa_copy_texture_state( const GLcontext *src, GLcontext *dst )
{
- GLuint i, tex;
+ GLuint u, tex;
ASSERT(src);
ASSERT(dst);
dst->Texture.SharedPalette = src->Texture.SharedPalette;
/* per-unit state */
- for (i = 0; i < src->Const.MaxTextureImageUnits; i++) {
- dst->Texture.Unit[i].Enabled = src->Texture.Unit[i].Enabled;
- dst->Texture.Unit[i].EnvMode = src->Texture.Unit[i].EnvMode;
- COPY_4V(dst->Texture.Unit[i].EnvColor, src->Texture.Unit[i].EnvColor);
- dst->Texture.Unit[i].TexGenEnabled = src->Texture.Unit[i].TexGenEnabled;
- dst->Texture.Unit[i].GenS = src->Texture.Unit[i].GenS;
- dst->Texture.Unit[i].GenT = src->Texture.Unit[i].GenT;
- dst->Texture.Unit[i].GenR = src->Texture.Unit[i].GenR;
- dst->Texture.Unit[i].GenQ = src->Texture.Unit[i].GenQ;
- dst->Texture.Unit[i].LodBias = src->Texture.Unit[i].LodBias;
+ for (u = 0; u < src->Const.MaxTextureImageUnits; u++) {
+ dst->Texture.Unit[u].Enabled = src->Texture.Unit[u].Enabled;
+ dst->Texture.Unit[u].EnvMode = src->Texture.Unit[u].EnvMode;
+ COPY_4V(dst->Texture.Unit[u].EnvColor, src->Texture.Unit[u].EnvColor);
+ dst->Texture.Unit[u].TexGenEnabled = src->Texture.Unit[u].TexGenEnabled;
+ dst->Texture.Unit[u].GenS = src->Texture.Unit[u].GenS;
+ dst->Texture.Unit[u].GenT = src->Texture.Unit[u].GenT;
+ dst->Texture.Unit[u].GenR = src->Texture.Unit[u].GenR;
+ dst->Texture.Unit[u].GenQ = src->Texture.Unit[u].GenQ;
+ dst->Texture.Unit[u].LodBias = src->Texture.Unit[u].LodBias;
/* GL_EXT_texture_env_combine */
- dst->Texture.Unit[i].Combine.ModeRGB = src->Texture.Unit[i].Combine.ModeRGB;
- dst->Texture.Unit[i].Combine.ModeA = src->Texture.Unit[i].Combine.ModeA;
- COPY_3V(dst->Texture.Unit[i].Combine.SourceRGB, src->Texture.Unit[i].Combine.SourceRGB);
- COPY_3V(dst->Texture.Unit[i].Combine.SourceA, src->Texture.Unit[i].Combine.SourceA);
- COPY_3V(dst->Texture.Unit[i].Combine.OperandRGB, src->Texture.Unit[i].Combine.OperandRGB);
- COPY_3V(dst->Texture.Unit[i].Combine.OperandA, src->Texture.Unit[i].Combine.OperandA);
- dst->Texture.Unit[i].Combine.ScaleShiftRGB = src->Texture.Unit[i].Combine.ScaleShiftRGB;
- dst->Texture.Unit[i].Combine.ScaleShiftA = src->Texture.Unit[i].Combine.ScaleShiftA;
+ dst->Texture.Unit[u].Combine = src->Texture.Unit[u].Combine;
+
+ /* GL_ATI_envmap_bumpmap - need this? */
+ dst->Texture.Unit[u].BumpTarget = src->Texture.Unit[u].BumpTarget;
+ COPY_4V(dst->Texture.Unit[u].RotMatrix, src->Texture.Unit[u].RotMatrix);
+
/* copy texture object bindings, not contents of texture objects */
_mesa_lock_context_textures(dst);
for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
- _mesa_reference_texobj(&dst->Texture.Unit[i].CurrentTex[tex],
- src->Texture.Unit[i].CurrentTex[tex]);
+ _mesa_reference_texobj(&dst->Texture.Unit[u].CurrentTex[tex],
+ src->Texture.Unit[u].CurrentTex[tex]);
}
_mesa_unlock_context_textures(dst);
case GL_LUMINANCE:
case GL_RGB:
case GL_YCBCR_MESA:
+ case GL_DUDV_ATI:
state->SourceA[0] = GL_PREVIOUS;
break;
default:
- _mesa_problem(NULL, "Invalid texBaseFormat in calculate_derived_texenv");
+ _mesa_problem(NULL,
+ "Invalid texBaseFormat 0x%x in calculate_derived_texenv",
+ texBaseFormat);
return;
}
break;
case GL_RGB:
case GL_YCBCR_MESA:
+ case GL_DUDV_ATI:
mode_rgb = GL_REPLACE;
break;
case GL_RGBA:
case GL_LUMINANCE_ALPHA:
case GL_RGBA:
case GL_YCBCR_MESA:
+ case GL_DUDV_ATI:
state->SourceRGB[2] = GL_TEXTURE;
state->SourceA[2] = GL_TEXTURE;
state->SourceRGB[0] = GL_CONSTANT;
default:
_mesa_problem(NULL,
- "Invalid texture env mode in calculate_derived_texenv");
+ "Invalid texture env mode 0x%x in calculate_derived_texenv",
+ mode);
return;
}
static void
update_texture_matrices( GLcontext *ctx )
{
- GLuint i;
+ GLuint u;
- ctx->Texture._TexMatEnabled = 0;
+ ctx->Texture._TexMatEnabled = 0x0;
- for (i=0; i < ctx->Const.MaxTextureCoordUnits; i++) {
- if (_math_matrix_is_dirty(ctx->TextureMatrixStack[i].Top)) {
- _math_matrix_analyse( ctx->TextureMatrixStack[i].Top );
+ for (u = 0; u < ctx->Const.MaxTextureCoordUnits; u++) {
+ if (_math_matrix_is_dirty(ctx->TextureMatrixStack[u].Top)) {
+ _math_matrix_analyse( ctx->TextureMatrixStack[u].Top );
- if (ctx->Texture.Unit[i]._ReallyEnabled &&
- ctx->TextureMatrixStack[i].Top->type != MATRIX_IDENTITY)
- ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(i);
+ if (ctx->Texture.Unit[u]._ReallyEnabled &&
+ ctx->TextureMatrixStack[u].Top->type != MATRIX_IDENTITY)
+ ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(u);
if (ctx->Driver.TextureMatrix)
- ctx->Driver.TextureMatrix( ctx, i, ctx->TextureMatrixStack[i].Top);
- }
- }
-}
-
-
-/**
- * Update texture object's _Function field. We need to do this
- * whenever any of the texture object's shadow-related fields change
- * or when we start/stop using a fragment program.
- *
- * This function could be expanded someday to update additional per-object
- * fields that depend on assorted state changes.
- */
-static void
-update_texture_compare_function(GLcontext *ctx,
- struct gl_texture_object *tObj)
-{
- /* XXX temporarily disable this test since it breaks the GLSL
- * shadow2D(), etc. functions.
- */
- if (0 /*ctx->FragmentProgram._Current*/) {
- /* Texel/coordinate comparison is ignored for programs.
- * See GL_ARB_fragment_program/shader spec for details.
- */
- tObj->_Function = GL_NONE;
- }
- else if (tObj->CompareMode == GL_COMPARE_R_TO_TEXTURE_ARB) {
- /* GL_ARB_shadow */
- tObj->_Function = tObj->CompareFunc;
- }
- else {
- tObj->_Function = GL_NONE; /* pass depth through as grayscale */
- }
-}
-
-
-/**
- * Helper function for determining which texture object (1D, 2D, cube, etc)
- * should actually be used.
- */
-static void
-texture_override(GLcontext *ctx,
- struct gl_texture_unit *texUnit, GLbitfield enableBits,
- struct gl_texture_object *texObj, GLuint textureBit)
-{
- if (!texUnit->_ReallyEnabled && (enableBits & textureBit)) {
- if (!texObj->_Complete) {
- _mesa_test_texobj_completeness(ctx, texObj);
- }
- if (texObj->_Complete) {
- texUnit->_ReallyEnabled = textureBit;
- texUnit->_Current = texObj;
- update_texture_compare_function(ctx, texObj);
+ ctx->Driver.TextureMatrix( ctx, u, ctx->TextureMatrixStack[u].Top);
}
}
}
static void
update_tex_combine(GLcontext *ctx, struct gl_texture_unit *texUnit)
{
+ struct gl_tex_env_combine_state *combine;
+
/* Set the texUnit->_CurrentCombine field to point to the user's combiner
* state, or the combiner state which is derived from traditional texenv
* mode.
texUnit->_CurrentCombine = & texUnit->_EnvMode;
}
+ combine = texUnit->_CurrentCombine;
+
/* Determine number of source RGB terms in the combiner function */
- switch (texUnit->_CurrentCombine->ModeRGB) {
+ switch (combine->ModeRGB) {
case GL_REPLACE:
- texUnit->_CurrentCombine->_NumArgsRGB = 1;
+ combine->_NumArgsRGB = 1;
break;
case GL_ADD:
case GL_ADD_SIGNED:
if (texUnit->EnvMode == GL_COMBINE4_NV)
- texUnit->_CurrentCombine->_NumArgsRGB = 4;
+ combine->_NumArgsRGB = 4;
else
- texUnit->_CurrentCombine->_NumArgsRGB = 2;
+ combine->_NumArgsRGB = 2;
break;
case GL_MODULATE:
case GL_SUBTRACT:
case GL_DOT3_RGBA:
case GL_DOT3_RGB_EXT:
case GL_DOT3_RGBA_EXT:
- texUnit->_CurrentCombine->_NumArgsRGB = 2;
+ combine->_NumArgsRGB = 2;
break;
case GL_INTERPOLATE:
case GL_MODULATE_ADD_ATI:
case GL_MODULATE_SIGNED_ADD_ATI:
case GL_MODULATE_SUBTRACT_ATI:
- texUnit->_CurrentCombine->_NumArgsRGB = 3;
+ combine->_NumArgsRGB = 3;
+ break;
+ case GL_BUMP_ENVMAP_ATI:
+ /* no real arguments for this case */
+ combine->_NumArgsRGB = 0;
break;
default:
- texUnit->_CurrentCombine->_NumArgsRGB = 0;
+ combine->_NumArgsRGB = 0;
_mesa_problem(ctx, "invalid RGB combine mode in update_texture_state");
return;
}
/* Determine number of source Alpha terms in the combiner function */
- switch (texUnit->_CurrentCombine->ModeA) {
+ switch (combine->ModeA) {
case GL_REPLACE:
- texUnit->_CurrentCombine->_NumArgsA = 1;
+ combine->_NumArgsA = 1;
break;
case GL_ADD:
case GL_ADD_SIGNED:
if (texUnit->EnvMode == GL_COMBINE4_NV)
- texUnit->_CurrentCombine->_NumArgsA = 4;
+ combine->_NumArgsA = 4;
else
- texUnit->_CurrentCombine->_NumArgsA = 2;
+ combine->_NumArgsA = 2;
break;
case GL_MODULATE:
case GL_SUBTRACT:
- texUnit->_CurrentCombine->_NumArgsA = 2;
+ combine->_NumArgsA = 2;
break;
case GL_INTERPOLATE:
case GL_MODULATE_ADD_ATI:
case GL_MODULATE_SIGNED_ADD_ATI:
case GL_MODULATE_SUBTRACT_ATI:
- texUnit->_CurrentCombine->_NumArgsA = 3;
+ combine->_NumArgsA = 3;
break;
default:
- texUnit->_CurrentCombine->_NumArgsA = 0;
+ combine->_NumArgsA = 0;
_mesa_problem(ctx, "invalid Alpha combine mode in update_texture_state");
break;
}
GLuint unit;
struct gl_fragment_program *fprog = NULL;
struct gl_vertex_program *vprog = NULL;
+ GLbitfield enabledFragUnits = 0x0;
if (ctx->Shader.CurrentProgram &&
ctx->Shader.CurrentProgram->LinkStatus) {
/* TODO: only set this if there are actual changes */
ctx->NewState |= _NEW_TEXTURE;
- ctx->Texture._EnabledUnits = 0;
- ctx->Texture._GenFlags = 0;
- ctx->Texture._TexMatEnabled = 0;
- ctx->Texture._TexGenEnabled = 0;
+ ctx->Texture._EnabledUnits = 0x0;
+ ctx->Texture._GenFlags = 0x0;
+ ctx->Texture._TexMatEnabled = 0x0;
+ ctx->Texture._TexGenEnabled = 0x0;
/*
* Update texture unit state.
*/
for (unit = 0; unit < ctx->Const.MaxTextureImageUnits; unit++) {
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
- GLbitfield enableBits;
+ GLbitfield enabledVertTargets = 0x0;
+ GLbitfield enabledFragTargets = 0x0;
+ GLbitfield enabledTargets = 0x0;
GLuint texIndex;
- texUnit->_Current = NULL;
- texUnit->_ReallyEnabled = 0;
- texUnit->_GenFlags = 0;
-
/* Get the bitmask of texture target enables.
* enableBits will be a mask of the TEXTURE_*_BIT flags indicating
* which texture targets are enabled (fixed function) or referenced
* by a fragment shader/program. When multiple flags are set, we'll
- * settle on the one with highest priority (see texture_override below).
+ * settle on the one with highest priority (see below).
*/
- enableBits = 0x0;
if (vprog) {
- enableBits |= vprog->Base.TexturesUsed[unit];
+ enabledVertTargets |= vprog->Base.TexturesUsed[unit];
}
+
if (fprog) {
- enableBits |= fprog->Base.TexturesUsed[unit];
+ enabledFragTargets |= fprog->Base.TexturesUsed[unit];
}
else {
/* fixed-function fragment program */
- enableBits |= texUnit->Enabled;
+ enabledFragTargets |= texUnit->Enabled;
}
- if (enableBits == 0x0)
+ enabledTargets = enabledVertTargets | enabledFragTargets;
+
+ texUnit->_ReallyEnabled = 0x0;
+
+ if (enabledTargets == 0x0) {
+ /* neither vertex nor fragment processing uses this unit */
continue;
+ }
- /* Look for the highest-priority texture target that's enabled and
- * complete. That's the one we'll use for texturing. If we're using
- * a fragment program we're guaranteed that bitcount(enabledBits) <= 1.
+ /* Look for the highest priority texture target that's enabled (or used
+ * by the vert/frag shaders) and "complete". That's the one we'll use
+ * for texturing. If we're using vert/frag program we're guaranteed
+ * that bitcount(enabledBits) <= 1.
* Note that the TEXTURE_x_INDEX values are in high to low priority.
*/
for (texIndex = 0; texIndex < NUM_TEXTURE_TARGETS; texIndex++) {
- texture_override(ctx, texUnit, enableBits,
- texUnit->CurrentTex[texIndex], 1 << texIndex);
+ if (enabledTargets & (1 << texIndex)) {
+ struct gl_texture_object *texObj = texUnit->CurrentTex[texIndex];
+ if (!texObj->_Complete) {
+ _mesa_test_texobj_completeness(ctx, texObj);
+ }
+ if (texObj->_Complete) {
+ texUnit->_ReallyEnabled = 1 << texIndex;
+ _mesa_reference_texobj(&texUnit->_Current, texObj);
+ break;
+ }
+ }
}
if (!texUnit->_ReallyEnabled) {
- continue;
+ if (fprog) {
+ /* If we get here it means the shader is expecting a texture
+ * object, but there isn't one (or it's incomplete). Use the
+ * fallback texture.
+ */
+ struct gl_texture_object *texObj = _mesa_get_fallback_texture(ctx);
+ texUnit->_ReallyEnabled = 1 << TEXTURE_2D_INDEX;
+ _mesa_reference_texobj(&texUnit->_Current, texObj);
+ }
+ else {
+ /* fixed-function: texture unit is really disabled */
+ continue;
+ }
}
/* if we get here, we know this texture unit is enabled */
ctx->Texture._EnabledUnits |= (1 << unit);
+ if (enabledFragTargets)
+ enabledFragUnits |= (1 << unit);
+
update_tex_combine(ctx, texUnit);
}
= (fprog->Base.InputsRead >> FRAG_ATTRIB_TEX0) & coordMask;
}
else {
- ctx->Texture._EnabledCoordUnits = ctx->Texture._EnabledUnits;
+ ctx->Texture._EnabledCoordUnits = enabledFragUnits;
}
/* Setup texgen for those texture coordinate sets that are in use */
for (unit = 0; unit < ctx->Const.MaxTextureCoordUnits; unit++) {
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
+ texUnit->_GenFlags = 0x0;
+
if (!(ctx->Texture._EnabledCoordUnits & (1 << unit)))
continue;
texUnit->Combine = default_combine_state;
texUnit->_EnvMode = default_combine_state;
texUnit->_CurrentCombine = & texUnit->_EnvMode;
+ texUnit->BumpTarget = GL_TEXTURE0;
- texUnit->TexGenEnabled = 0;
+ texUnit->TexGenEnabled = 0x0;
texUnit->GenS.Mode = GL_EYE_LINEAR;
texUnit->GenT.Mode = GL_EYE_LINEAR;
texUnit->GenR.Mode = GL_EYE_LINEAR;
ASSIGN_4V( texUnit->GenT.EyePlane, 0.0, 1.0, 0.0, 0.0 );
ASSIGN_4V( texUnit->GenR.EyePlane, 0.0, 0.0, 0.0, 0.0 );
ASSIGN_4V( texUnit->GenQ.EyePlane, 0.0, 0.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenS.ObjectPlane, 1.0, 0.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenT.ObjectPlane, 0.0, 1.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenR.ObjectPlane, 0.0, 0.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenQ.ObjectPlane, 0.0, 0.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenS.EyePlane, 1.0, 0.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenT.EyePlane, 0.0, 1.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenR.EyePlane, 0.0, 0.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenQ.EyePlane, 0.0, 0.0, 0.0, 0.0 );
+ /* no mention of this in spec, but maybe id matrix expected? */
+ ASSIGN_4V( texUnit->RotMatrix, 1.0, 0.0, 0.0, 1.0 );
/* initialize current texture object ptrs to the shared default objects */
for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
GLboolean
_mesa_init_texture(GLcontext *ctx)
{
- GLuint i;
-
- assert(MAX_TEXTURE_LEVELS >= MAX_3D_TEXTURE_LEVELS);
- assert(MAX_TEXTURE_LEVELS >= MAX_CUBE_TEXTURE_LEVELS);
+ GLuint u;
/* Texture group */
ctx->Texture.CurrentUnit = 0; /* multitexture */
- ctx->Texture._EnabledUnits = 0;
+ ctx->Texture._EnabledUnits = 0x0;
ctx->Texture.SharedPalette = GL_FALSE;
#if FEATURE_colortable
_mesa_init_colortable(&ctx->Texture.Palette);
#endif
- for (i = 0; i < MAX_TEXTURE_UNITS; i++)
- init_texture_unit( ctx, i );
+ for (u = 0; u < MAX_TEXTURE_UNITS; u++)
+ init_texture_unit(ctx, u);
/* After we're done initializing the context's texture state the default
* texture objects' refcounts should be at least MAX_TEXTURE_UNITS + 1.
/* unreference current textures */
for (u = 0; u < MAX_TEXTURE_IMAGE_UNITS; u++) {
- struct gl_texture_unit *unit = ctx->Texture.Unit + u;
+ /* The _Current texture could account for another reference */
+ _mesa_reference_texobj(&ctx->Texture.Unit[u]._Current, NULL);
+
for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) {
- _mesa_reference_texobj(&unit->CurrentTex[tgt], NULL);
+ _mesa_reference_texobj(&ctx->Texture.Unit[u].CurrentTex[tgt], NULL);
}
}
ctx->Driver.DeleteTexture(ctx, ctx->Texture.ProxyTex[tgt]);
#if FEATURE_colortable
- {
- GLuint i;
- for (i = 0; i < MAX_TEXTURE_IMAGE_UNITS; i++)
- _mesa_free_colortable_data( &ctx->Texture.Unit[i].ColorTable );
- }
+ for (u = 0; u < MAX_TEXTURE_IMAGE_UNITS; u++)
+ _mesa_free_colortable_data(&ctx->Texture.Unit[u].ColorTable);
#endif
}
void
_mesa_update_default_objects_texture(GLcontext *ctx)
{
- GLuint i, tex;
+ GLuint u, tex;
- for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i];
+ for (u = 0; u < MAX_TEXTURE_UNITS; u++) {
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[u];
for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
_mesa_reference_texobj(&texUnit->CurrentTex[tex],
ctx->Shared->DefaultTex[tex]);
projects / mesa.git / blobdiff