/*
* Mesa 3-D graphics library
- * Version: 7.5
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
* Copyright (C) 2009 VMware, Inc. All Rights Reserved.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
*/
/**
#include "main/glheader.h"
#include "main/context.h"
+#include "main/blend.h"
#include "main/enums.h"
#include "main/macros.h"
#include "main/mtypes.h"
#define TE_ERROR(errCode, msg, value) \
- _mesa_error(ctx, errCode, msg, _mesa_lookup_enum_by_nr(value));
+ _mesa_error(ctx, errCode, msg, _mesa_enum_to_string(value));
/** Set texture env mode */
static void
set_env_mode(struct gl_context *ctx,
- struct gl_texture_unit *texUnit,
+ struct gl_fixedfunc_texture_unit *texUnit,
GLenum mode)
{
GLboolean legal;
}
if (legal) {
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE);
texUnit->EnvMode = mode;
}
else {
static void
set_env_color(struct gl_context *ctx,
- struct gl_texture_unit *texUnit,
+ struct gl_fixedfunc_texture_unit *texUnit,
const GLfloat *color)
{
if (TEST_EQ_4V(color, texUnit->EnvColorUnclamped))
return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE);
COPY_4FV(texUnit->EnvColorUnclamped, color);
texUnit->EnvColor[0] = CLAMP(color[0], 0.0F, 1.0F);
texUnit->EnvColor[1] = CLAMP(color[1], 0.0F, 1.0F);
/** Set an RGB or A combiner mode/function */
-static void
+static bool
set_combiner_mode(struct gl_context *ctx,
- struct gl_texture_unit *texUnit,
+ struct gl_fixedfunc_texture_unit *texUnit,
GLenum pname, GLenum mode)
{
GLboolean legal;
legal = (ctx->API == API_OPENGL_COMPAT &&
ctx->Extensions.ATI_texture_env_combine3);
break;
- case GL_BUMP_ENVMAP_ATI:
- legal = (ctx->API == API_OPENGL_COMPAT &&
- ctx->Extensions.ATI_envmap_bumpmap &&
- pname == GL_COMBINE_RGB);
- break;
default:
legal = GL_FALSE;
}
if (!legal) {
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode);
- return;
+ return false;
}
switch (pname) {
case GL_COMBINE_RGB:
if (texUnit->Combine.ModeRGB == mode)
- return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ return true;
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE);
texUnit->Combine.ModeRGB = mode;
break;
case GL_COMBINE_ALPHA:
if (texUnit->Combine.ModeA == mode)
- return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ return true;
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE);
texUnit->Combine.ModeA = mode;
break;
default:
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
+ return false;
}
+
+ return true;
}
/** Set an RGB or A combiner source term */
-static void
+static bool
set_combiner_source(struct gl_context *ctx,
- struct gl_texture_unit *texUnit,
+ struct gl_fixedfunc_texture_unit *texUnit,
GLenum pname, GLenum param)
{
GLuint term;
break;
default:
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
- return;
+ return false;
}
if ((term == 3) && (ctx->API != API_OPENGL_COMPAT
|| !ctx->Extensions.NV_texture_env_combine4)) {
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
- return;
+ return false;
}
assert(term < MAX_COMBINER_TERMS);
if (!legal) {
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", param);
- return;
+ return false;
}
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE);
if (alpha)
texUnit->Combine.SourceA[term] = param;
else
texUnit->Combine.SourceRGB[term] = param;
+
+ return true;
}
/** Set an RGB or A combiner operand term */
-static void
+static bool
set_combiner_operand(struct gl_context *ctx,
- struct gl_texture_unit *texUnit,
+ struct gl_fixedfunc_texture_unit *texUnit,
GLenum pname, GLenum param)
{
GLuint term;
break;
default:
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
- return;
+ return false;
}
if ((term == 3) && (ctx->API != API_OPENGL_COMPAT
|| !ctx->Extensions.NV_texture_env_combine4)) {
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
- return;
+ return false;
}
assert(term < MAX_COMBINER_TERMS);
if (!legal) {
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", param);
- return;
+ return false;
}
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE);
if (alpha)
texUnit->Combine.OperandA[term] = param;
else
texUnit->Combine.OperandRGB[term] = param;
+
+ return true;
}
-static void
+static bool
set_combiner_scale(struct gl_context *ctx,
- struct gl_texture_unit *texUnit,
+ struct gl_fixedfunc_texture_unit *texUnit,
GLenum pname, GLfloat scale)
{
GLuint shift;
else {
_mesa_error( ctx, GL_INVALID_VALUE,
"glTexEnv(GL_RGB_SCALE not 1, 2 or 4)" );
- return;
+ return false;
}
switch (pname) {
case GL_RGB_SCALE:
if (texUnit->Combine.ScaleShiftRGB == shift)
- return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ return true;
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE);
texUnit->Combine.ScaleShiftRGB = shift;
break;
case GL_ALPHA_SCALE:
if (texUnit->Combine.ScaleShiftA == shift)
- return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ return true;
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE);
texUnit->Combine.ScaleShiftA = shift;
break;
default:
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
+ return false;
}
+
+ return true;
}
_mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param )
{
const GLint iparam0 = (GLint) param[0];
- struct gl_texture_unit *texUnit;
GLuint maxUnit;
GET_CURRENT_CONTEXT(ctx);
return;
}
- texUnit = _mesa_get_current_tex_unit(ctx);
-
if (target == GL_TEXTURE_ENV) {
+ struct gl_fixedfunc_texture_unit *texUnit =
+ _mesa_get_current_fixedfunc_tex_unit(ctx);
+
+ /* The GL spec says that we should report an error if the unit is greater
+ * than GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, but in practice, only
+ * fixed-function units are usable. This is probably a spec bug.
+ * Ignore glTexEnv(GL_TEXTURE_ENV) calls for non-fixed-func units,
+ * because we don't want to process calls that have no effect.
+ */
+ if (!texUnit)
+ return;
+
switch (pname) {
case GL_TEXTURE_ENV_MODE:
set_env_mode(ctx, texUnit, (GLenum) iparam0);
break;
case GL_COMBINE_RGB:
case GL_COMBINE_ALPHA:
- set_combiner_mode(ctx, texUnit, pname, (GLenum) iparam0);
+ if (!set_combiner_mode(ctx, texUnit, pname, (GLenum) iparam0))
+ return;
break;
case GL_SOURCE0_RGB:
case GL_SOURCE1_RGB:
case GL_SOURCE1_ALPHA:
case GL_SOURCE2_ALPHA:
case GL_SOURCE3_ALPHA_NV:
- set_combiner_source(ctx, texUnit, pname, (GLenum) iparam0);
+ if (!set_combiner_source(ctx, texUnit, pname, (GLenum) iparam0))
+ return;
break;
case GL_OPERAND0_RGB:
case GL_OPERAND1_RGB:
case GL_OPERAND1_ALPHA:
case GL_OPERAND2_ALPHA:
case GL_OPERAND3_ALPHA_NV:
- set_combiner_operand(ctx, texUnit, pname, (GLenum) iparam0);
+ if (!set_combiner_operand(ctx, texUnit, pname, (GLenum) iparam0))
+ return;
break;
case GL_RGB_SCALE:
case GL_ALPHA_SCALE:
- set_combiner_scale(ctx, texUnit, pname, param[0]);
- break;
- case GL_BUMP_TARGET_ATI:
- if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ATI_envmap_bumpmap) {
- _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname=0x%x)", pname );
- return;
- }
- if ((iparam0 < GL_TEXTURE0) ||
- (iparam0 > GL_TEXTURE31)) {
- /* spec doesn't say this but it seems logical */
- _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param=0x%x)", iparam0);
- return;
- }
- if (!((1 << (iparam0 - GL_TEXTURE0)) & ctx->Const.SupportedBumpUnits)) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glTexEnv(param=0x%x)", iparam0);
- return;
- }
- else {
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->BumpTarget = iparam0;
- }
+ if (!set_combiner_scale(ctx, texUnit, pname, param[0]))
+ return;
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" );
}
}
else if (target == GL_TEXTURE_FILTER_CONTROL_EXT) {
+ struct gl_texture_unit *texUnit =
+ _mesa_get_current_tex_unit(ctx);
+
if (pname == GL_TEXTURE_LOD_BIAS_EXT) {
if (texUnit->LodBias == param[0])
return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
texUnit->LodBias = param[0];
}
else {
return;
}
if (pname == GL_COORD_REPLACE_NV) {
- if (iparam0 == GL_TRUE || iparam0 == GL_FALSE) {
- /* It's kind of weird to set point state via glTexEnv,
- * but that's what the spec calls for.
- */
- const GLboolean state = (GLboolean) iparam0;
- if (ctx->Point.CoordReplace[ctx->Texture.CurrentUnit] == state)
+ /* It's kind of weird to set point state via glTexEnv,
+ * but that's what the spec calls for.
+ */
+ if (iparam0 == GL_TRUE) {
+ if (ctx->Point.CoordReplace & (1u << ctx->Texture.CurrentUnit))
return;
- FLUSH_VERTICES(ctx, _NEW_POINT);
- ctx->Point.CoordReplace[ctx->Texture.CurrentUnit] = state;
- }
- else {
+ ctx->Point.CoordReplace |= (1u << ctx->Texture.CurrentUnit);
+ } else if (iparam0 == GL_FALSE) {
+ if (~(ctx->Point.CoordReplace) & (1u << ctx->Texture.CurrentUnit))
+ return;
+ ctx->Point.CoordReplace &= ~(1u << ctx->Texture.CurrentUnit);
+ } else {
_mesa_error( ctx, GL_INVALID_VALUE, "glTexEnv(param=0x%x)", iparam0);
return;
}
+ FLUSH_VERTICES(ctx, _NEW_POINT);
}
else {
_mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname=0x%x)", pname );
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(target=%s)",
- _mesa_lookup_enum_by_nr(target));
+ _mesa_enum_to_string(target));
return;
}
if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE))
_mesa_debug(ctx, "glTexEnv %s %s %.1f(%s) ...\n",
- _mesa_lookup_enum_by_nr(target),
- _mesa_lookup_enum_by_nr(pname),
+ _mesa_enum_to_string(target),
+ _mesa_enum_to_string(pname),
*param,
- _mesa_lookup_enum_by_nr((GLenum) iparam0));
+ _mesa_enum_to_string((GLenum) iparam0));
/* Tell device driver about the new texture environment */
if (ctx->Driver.TexEnv) {
- (*ctx->Driver.TexEnv)( ctx, target, pname, param );
+ ctx->Driver.TexEnv(ctx, target, pname, param);
}
}
* \return value of queried pname or -1 if error.
*/
static GLint
-get_texenvi(struct gl_context *ctx, const struct gl_texture_unit *texUnit,
+get_texenvi(struct gl_context *ctx,
+ const struct gl_fixedfunc_texture_unit *texUnit,
GLenum pname)
{
switch (pname) {
return 1 << texUnit->Combine.ScaleShiftRGB;
case GL_ALPHA_SCALE:
return 1 << texUnit->Combine.ScaleShiftA;
- case GL_BUMP_TARGET_ATI:
- /* spec doesn't say so, but I think this should be queryable */
- if (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ATI_envmap_bumpmap) {
- return texUnit->BumpTarget;
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
- }
- break;
-
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
break;
_mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params )
{
GLuint maxUnit;
- const struct gl_texture_unit *texUnit;
GET_CURRENT_CONTEXT(ctx);
maxUnit = (target == GL_POINT_SPRITE_NV && pname == GL_COORD_REPLACE_NV)
return;
}
- texUnit = _mesa_get_current_tex_unit(ctx);
-
if (target == GL_TEXTURE_ENV) {
+ struct gl_fixedfunc_texture_unit *texUnit =
+ _mesa_get_current_fixedfunc_tex_unit(ctx);
+
+ /* The GL spec says that we should report an error if the unit is greater
+ * than GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, but in practice, only
+ * fixed-function units are usable. This is probably a spec bug.
+ * Ignore calls for non-fixed-func units, because we don't process
+ * glTexEnv for them either.
+ */
+ if (!texUnit)
+ return;
+
if (pname == GL_TEXTURE_ENV_COLOR) {
if(ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
_mesa_update_state(ctx);
- if(ctx->Color._ClampFragmentColor)
+ if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
COPY_4FV( params, texUnit->EnvColor );
else
COPY_4FV( params, texUnit->EnvColorUnclamped );
}
}
else if (target == GL_TEXTURE_FILTER_CONTROL_EXT) {
+ const struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+
if (pname == GL_TEXTURE_LOD_BIAS_EXT) {
*params = texUnit->LodBias;
}
return;
}
if (pname == GL_COORD_REPLACE_NV) {
- *params = (GLfloat) ctx->Point.CoordReplace[ctx->Texture.CurrentUnit];
+ if (ctx->Point.CoordReplace & (1u << ctx->Texture.CurrentUnit))
+ *params = 1.0f;
+ else
+ *params = 0.0f;
}
else {
_mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)" );
_mesa_GetTexEnviv( GLenum target, GLenum pname, GLint *params )
{
GLuint maxUnit;
- const struct gl_texture_unit *texUnit;
GET_CURRENT_CONTEXT(ctx);
maxUnit = (target == GL_POINT_SPRITE_NV && pname == GL_COORD_REPLACE_NV)
return;
}
- texUnit = _mesa_get_current_tex_unit(ctx);
-
if (target == GL_TEXTURE_ENV) {
+ struct gl_fixedfunc_texture_unit *texUnit =
+ _mesa_get_current_fixedfunc_tex_unit(ctx);
+
+ /* The GL spec says that we should report an error if the unit is greater
+ * than GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, but in practice, only
+ * fixed-function units are usable. This is probably a spec bug.
+ * Ignore calls for non-fixed-func units, because we don't process
+ * glTexEnv for them either.
+ */
+ if (!texUnit)
+ return;
+
if (pname == GL_TEXTURE_ENV_COLOR) {
params[0] = FLOAT_TO_INT( texUnit->EnvColor[0] );
params[1] = FLOAT_TO_INT( texUnit->EnvColor[1] );
}
}
else if (target == GL_TEXTURE_FILTER_CONTROL_EXT) {
+ const struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+
if (pname == GL_TEXTURE_LOD_BIAS_EXT) {
*params = (GLint) texUnit->LodBias;
}
return;
}
if (pname == GL_COORD_REPLACE_NV) {
- *params = (GLint) ctx->Point.CoordReplace[ctx->Texture.CurrentUnit];
+ if (ctx->Point.CoordReplace & (1u << ctx->Texture.CurrentUnit))
+ *params = GL_TRUE;
+ else
+ *params = GL_FALSE;
}
else {
_mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)" );
}
}
-
-/**
- * Why does ATI_envmap_bumpmap require new entrypoints? Should just
- * reuse TexEnv ones...
- */
-void GLAPIENTRY
-_mesa_TexBumpParameterivATI( GLenum pname, const GLint *param )
-{
- GLfloat p[4];
- GET_CURRENT_CONTEXT(ctx);
-
- if (!ctx->Extensions.ATI_envmap_bumpmap) {
- /* This isn't an "official" error case, but let's tell the user
- * that something's wrong.
- */
- _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBumpParameterivATI");
- return;
- }
-
- if (pname == GL_BUMP_ROT_MATRIX_ATI) {
- /* hope that conversion is correct here */
- p[0] = INT_TO_FLOAT( param[0] );
- p[1] = INT_TO_FLOAT( param[1] );
- p[2] = INT_TO_FLOAT( param[2] );
- p[3] = INT_TO_FLOAT( param[3] );
- }
- else {
- p[0] = (GLfloat) param[0];
- p[1] = p[2] = p[3] = 0.0F; /* init to zero, just to be safe */
- }
- _mesa_TexBumpParameterfvATI( pname, p );
-}
-
-
-void GLAPIENTRY
-_mesa_TexBumpParameterfvATI( GLenum pname, const GLfloat *param )
-{
- struct gl_texture_unit *texUnit;
- GET_CURRENT_CONTEXT(ctx);
-
- if (!ctx->Extensions.ATI_envmap_bumpmap) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBumpParameterfvATI");
- return;
- }
-
- texUnit = _mesa_get_current_tex_unit(ctx);
-
- if (pname == GL_BUMP_ROT_MATRIX_ATI) {
- if (TEST_EQ_4V(param, texUnit->RotMatrix))
- return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- COPY_4FV(texUnit->RotMatrix, param);
- }
- else {
- _mesa_error( ctx, GL_INVALID_ENUM, "glTexBumpParameter(pname)" );
- return;
- }
- /* Drivers might want to know about this, instead of dedicated function
- just shove it into TexEnv where it really belongs anyway */
- if (ctx->Driver.TexEnv) {
- (*ctx->Driver.TexEnv)( ctx, 0, pname, param );
- }
-}
-
-
-void GLAPIENTRY
-_mesa_GetTexBumpParameterivATI( GLenum pname, GLint *param )
-{
- const struct gl_texture_unit *texUnit;
- GLuint i;
- GET_CURRENT_CONTEXT(ctx);
-
- if (!ctx->Extensions.ATI_envmap_bumpmap) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexBumpParameterivATI");
- return;
- }
-
- texUnit = _mesa_get_current_tex_unit(ctx);
-
- if (pname == GL_BUMP_ROT_MATRIX_SIZE_ATI) {
- /* spec leaves open to support larger matrices.
- Don't think anyone would ever want to use it
- (and apps almost certainly would not understand it and
- thus fail to submit matrices correctly) so hardcode this. */
- *param = 4;
- }
- else if (pname == GL_BUMP_ROT_MATRIX_ATI) {
- /* hope that conversion is correct here */
- param[0] = FLOAT_TO_INT(texUnit->RotMatrix[0]);
- param[1] = FLOAT_TO_INT(texUnit->RotMatrix[1]);
- param[2] = FLOAT_TO_INT(texUnit->RotMatrix[2]);
- param[3] = FLOAT_TO_INT(texUnit->RotMatrix[3]);
- }
- else if (pname == GL_BUMP_NUM_TEX_UNITS_ATI) {
- GLint count = 0;
- for (i = 0; i < ctx->Const.MaxTextureImageUnits; i++) {
- if (ctx->Const.SupportedBumpUnits & (1 << i)) {
- count++;
- }
- }
- *param = count;
- }
- else if (pname == GL_BUMP_TEX_UNITS_ATI) {
- for (i = 0; i < ctx->Const.MaxTextureImageUnits; i++) {
- if (ctx->Const.SupportedBumpUnits & (1 << i)) {
- *param++ = i + GL_TEXTURE0;
- }
- }
- }
- else {
- _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexBumpParameter(pname)" );
- return;
- }
-}
-
-
-void GLAPIENTRY
-_mesa_GetTexBumpParameterfvATI( GLenum pname, GLfloat *param )
-{
- const struct gl_texture_unit *texUnit;
- GLuint i;
- GET_CURRENT_CONTEXT(ctx);
-
- if (!ctx->Extensions.ATI_envmap_bumpmap) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexBumpParameterfvATI");
- return;
- }
-
- texUnit = _mesa_get_current_tex_unit(ctx);
-
- if (pname == GL_BUMP_ROT_MATRIX_SIZE_ATI) {
- /* spec leaves open to support larger matrices.
- Don't think anyone would ever want to use it
- (and apps might not understand it) so hardcode this. */
- *param = 4.0F;
- }
- else if (pname == GL_BUMP_ROT_MATRIX_ATI) {
- param[0] = texUnit->RotMatrix[0];
- param[1] = texUnit->RotMatrix[1];
- param[2] = texUnit->RotMatrix[2];
- param[3] = texUnit->RotMatrix[3];
- }
- else if (pname == GL_BUMP_NUM_TEX_UNITS_ATI) {
- GLint count = 0;
- for (i = 0; i < ctx->Const.MaxTextureImageUnits; i++) {
- if (ctx->Const.SupportedBumpUnits & (1 << i)) {
- count++;
- }
- }
- *param = (GLfloat) count;
- }
- else if (pname == GL_BUMP_TEX_UNITS_ATI) {
- for (i = 0; i < ctx->Const.MaxTextureImageUnits; i++) {
- if (ctx->Const.SupportedBumpUnits & (1 << i)) {
- *param++ = (GLfloat) (i + GL_TEXTURE0);
- }
- }
- }
- else {
- _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexBumpParameter(pname)" );
- return;
- }
-}
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