#include "main/enums.h"
#include "main/macros.h"
#include "main/texenv.h"
-#include "math/m_xform.h"
#define TE_ERROR(errCode, msg, value) \
src = 2;
alpha = GL_FALSE;
break;
+ case GL_SOURCE3_RGB_NV:
+ if (ctx->Extensions.NV_texture_env_combine4) {
+ src = 3;
+ alpha = GL_FALSE;
+ }
+ else {
+ TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
+ return;
+ }
+ break;
case GL_SOURCE0_ALPHA:
src = 0;
alpha = GL_TRUE;
src = 2;
alpha = GL_TRUE;
break;
+ case GL_SOURCE3_ALPHA_NV:
+ if (ctx->Extensions.NV_texture_env_combine4) {
+ src = 3;
+ alpha = GL_TRUE;
+ }
+ else {
+ TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
+ return;
+ }
+ break;
default:
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
return;
}
+ assert(src < 4);
+
/*
* Error-check param (the source term)
*/
param - GL_TEXTURE0 < ctx->Const.MaxTextureUnits);
break;
case GL_ZERO:
+ legal = (ctx->Extensions.ATI_texture_env_combine3 ||
+ ctx->Extensions.NV_texture_env_combine4);
+ break;
case GL_ONE:
legal = ctx->Extensions.ATI_texture_env_combine3;
break;
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- assert(src < 4);
if (alpha)
texUnit->Combine.SourceA[src] = param;
else
return;
}
break;
+ case GL_OPERAND3_RGB_NV:
+ if (ctx->Extensions.NV_texture_env_combine4) {
+ op = 3;
+ alpha = GL_FALSE;
+ }
+ else {
+ TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
+ return;
+ }
+ break;
case GL_OPERAND0_ALPHA:
op = 0;
alpha = GL_TRUE;
return;
}
break;
+ case GL_OPERAND3_ALPHA_NV:
+ if (ctx->Extensions.NV_texture_env_combine4) {
+ op = 3;
+ alpha = GL_TRUE;
+ }
+ else {
+ TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
+ return;
+ }
+ break;
default:
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
return;
}
+ assert(op < 4);
+
/*
* Error-check param (the source operand)
*/
break;
default:
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
- return;
}
}
case GL_SOURCE0_RGB:
case GL_SOURCE1_RGB:
case GL_SOURCE2_RGB:
+ case GL_SOURCE3_RGB_NV:
case GL_SOURCE0_ALPHA:
case GL_SOURCE1_ALPHA:
case GL_SOURCE2_ALPHA:
+ case GL_SOURCE3_ALPHA_NV:
set_combiner_source(ctx, texUnit, pname, (GLenum) (GLint) param[0]);
break;
case GL_OPERAND0_RGB:
case GL_OPERAND1_RGB:
case GL_OPERAND2_RGB:
+ case GL_OPERAND3_RGB_NV:
case GL_OPERAND0_ALPHA:
case GL_OPERAND1_ALPHA:
case GL_OPERAND2_ALPHA:
+ case GL_OPERAND3_ALPHA_NV:
set_combiner_operand(ctx, texUnit, pname, (GLenum) (GLint) param[0]);
break;
case GL_RGB_SCALE:
}
+
+/**
+ * Helper for glGetTexEnvi/f()
+ * \return value of queried pname or -1 if error.
+ */
+static GLint
+get_texenvi(GLcontext *ctx, const struct gl_texture_unit *texUnit,
+ GLenum pname)
+{
+ switch (pname) {
+ case GL_TEXTURE_ENV_MODE:
+ return texUnit->EnvMode;
+ break;
+ case GL_COMBINE_RGB:
+ if (ctx->Extensions.EXT_texture_env_combine ||
+ ctx->Extensions.ARB_texture_env_combine) {
+ return texUnit->Combine.ModeRGB;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
+ }
+ break;
+ case GL_COMBINE_ALPHA:
+ if (ctx->Extensions.EXT_texture_env_combine ||
+ ctx->Extensions.ARB_texture_env_combine) {
+ return texUnit->Combine.ModeA;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
+ }
+ break;
+ case GL_SOURCE0_RGB:
+ case GL_SOURCE1_RGB:
+ case GL_SOURCE2_RGB:
+ if (ctx->Extensions.EXT_texture_env_combine ||
+ ctx->Extensions.ARB_texture_env_combine) {
+ const unsigned rgb_idx = pname - GL_SOURCE0_RGB;
+ return texUnit->Combine.SourceRGB[rgb_idx];
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
+ }
+ break;
+ case GL_SOURCE3_RGB_NV:
+ if (ctx->Extensions.NV_texture_env_combine4) {
+ return texUnit->Combine.SourceRGB[3];
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
+ }
+ break;
+ case GL_SOURCE0_ALPHA:
+ case GL_SOURCE1_ALPHA:
+ case GL_SOURCE2_ALPHA:
+ if (ctx->Extensions.EXT_texture_env_combine ||
+ ctx->Extensions.ARB_texture_env_combine) {
+ const unsigned alpha_idx = pname - GL_SOURCE0_ALPHA;
+ return texUnit->Combine.SourceA[alpha_idx];
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
+ }
+ break;
+ case GL_SOURCE3_ALPHA_NV:
+ if (ctx->Extensions.NV_texture_env_combine4) {
+ return texUnit->Combine.SourceA[3];
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
+ }
+ break;
+ case GL_OPERAND0_RGB:
+ case GL_OPERAND1_RGB:
+ case GL_OPERAND2_RGB:
+ if (ctx->Extensions.EXT_texture_env_combine ||
+ ctx->Extensions.ARB_texture_env_combine) {
+ const unsigned op_rgb = pname - GL_OPERAND0_RGB;
+ return texUnit->Combine.OperandRGB[op_rgb];
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
+ }
+ break;
+ case GL_OPERAND3_RGB_NV:
+ if (ctx->Extensions.NV_texture_env_combine4) {
+ return texUnit->Combine.OperandRGB[3];
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
+ }
+ break;
+ case GL_OPERAND0_ALPHA:
+ case GL_OPERAND1_ALPHA:
+ case GL_OPERAND2_ALPHA:
+ if (ctx->Extensions.EXT_texture_env_combine ||
+ ctx->Extensions.ARB_texture_env_combine) {
+ const unsigned op_alpha = pname - GL_OPERAND0_ALPHA;
+ return texUnit->Combine.OperandA[op_alpha];
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
+ }
+ break;
+ case GL_OPERAND3_ALPHA_NV:
+ if (ctx->Extensions.NV_texture_env_combine4) {
+ return texUnit->Combine.OperandA[3];
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
+ }
+ break;
+ case GL_RGB_SCALE:
+ if (ctx->Extensions.EXT_texture_env_combine ||
+ ctx->Extensions.ARB_texture_env_combine) {
+ return 1 << texUnit->Combine.ScaleShiftRGB;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
+ }
+ break;
+ case GL_ALPHA_SCALE:
+ if (ctx->Extensions.EXT_texture_env_combine ||
+ ctx->Extensions.ARB_texture_env_combine) {
+ return 1 << texUnit->Combine.ScaleShiftA;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
+ }
+ break;
+ default:
+ ;
+ }
+
+ return -1; /* error */
+}
+
+
+
void GLAPIENTRY
_mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params )
{
texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
if (target == GL_TEXTURE_ENV) {
- switch (pname) {
- case GL_TEXTURE_ENV_MODE:
- *params = ENUM_TO_FLOAT(texUnit->EnvMode);
- break;
- case GL_TEXTURE_ENV_COLOR:
- COPY_4FV( params, texUnit->EnvColor );
- break;
- case GL_COMBINE_RGB:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->Combine.ModeRGB;
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
- }
- break;
- case GL_COMBINE_ALPHA:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->Combine.ModeA;
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
- }
- break;
- case GL_SOURCE0_RGB:
- case GL_SOURCE1_RGB:
- case GL_SOURCE2_RGB:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- const unsigned rgb_idx = pname - GL_SOURCE0_RGB;
- *params = (GLfloat) texUnit->Combine.SourceRGB[rgb_idx];
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
- }
- break;
- case GL_SOURCE0_ALPHA:
- case GL_SOURCE1_ALPHA:
- case GL_SOURCE2_ALPHA:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- const unsigned alpha_idx = pname - GL_SOURCE0_ALPHA;
- *params = (GLfloat) texUnit->Combine.SourceA[alpha_idx];
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
- }
- break;
- case GL_OPERAND0_RGB:
- case GL_OPERAND1_RGB:
- case GL_OPERAND2_RGB:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- const unsigned op_rgb = pname - GL_OPERAND0_RGB;
- *params = (GLfloat) texUnit->Combine.OperandRGB[op_rgb];
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
- }
- break;
- case GL_OPERAND0_ALPHA:
- case GL_OPERAND1_ALPHA:
- case GL_OPERAND2_ALPHA:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- const unsigned op_alpha = pname - GL_OPERAND0_ALPHA;
- *params = (GLfloat) texUnit->Combine.OperandA[op_alpha];
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
- }
- break;
- case GL_RGB_SCALE:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- if (texUnit->Combine.ScaleShiftRGB == 0)
- *params = 1.0;
- else if (texUnit->Combine.ScaleShiftRGB == 1)
- *params = 2.0;
- else
- *params = 4.0;
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
- return;
- }
- break;
- case GL_ALPHA_SCALE:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- if (texUnit->Combine.ScaleShiftA == 0)
- *params = 1.0;
- else if (texUnit->Combine.ScaleShiftA == 1)
- *params = 2.0;
- else
- *params = 4.0;
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
- return;
- }
- break;
- default:
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname=0x%x)", pname);
+ if (pname == GL_TEXTURE_ENV_COLOR) {
+ COPY_4FV( params, texUnit->EnvColor );
+ }
+ else {
+ GLint val = get_texenvi(ctx, texUnit, pname);
+ if (val >= 0) {
+ *params = (GLfloat) val;
+ }
}
}
else if (target == GL_TEXTURE_FILTER_CONTROL_EXT) {
texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
if (target == GL_TEXTURE_ENV) {
- switch (pname) {
- case GL_TEXTURE_ENV_MODE:
- *params = (GLint) texUnit->EnvMode;
- break;
- case GL_TEXTURE_ENV_COLOR:
- params[0] = FLOAT_TO_INT( texUnit->EnvColor[0] );
- params[1] = FLOAT_TO_INT( texUnit->EnvColor[1] );
- params[2] = FLOAT_TO_INT( texUnit->EnvColor[2] );
- params[3] = FLOAT_TO_INT( texUnit->EnvColor[3] );
- break;
- case GL_COMBINE_RGB:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->Combine.ModeRGB;
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
- }
- break;
- case GL_COMBINE_ALPHA:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->Combine.ModeA;
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
- }
- break;
- case GL_SOURCE0_RGB:
- case GL_SOURCE1_RGB:
- case GL_SOURCE2_RGB:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- const unsigned rgb_idx = pname - GL_SOURCE0_RGB;
- *params = (GLint) texUnit->Combine.SourceRGB[rgb_idx];
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
- }
- break;
- case GL_SOURCE0_ALPHA:
- case GL_SOURCE1_ALPHA:
- case GL_SOURCE2_ALPHA:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- const unsigned alpha_idx = pname - GL_SOURCE0_ALPHA;
- *params = (GLint) texUnit->Combine.SourceA[alpha_idx];
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
- }
- break;
- case GL_OPERAND0_RGB:
- case GL_OPERAND1_RGB:
- case GL_OPERAND2_RGB:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- const unsigned op_rgb = pname - GL_OPERAND0_RGB;
- *params = (GLint) texUnit->Combine.OperandRGB[op_rgb];
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
- }
- break;
- case GL_OPERAND0_ALPHA:
- case GL_OPERAND1_ALPHA:
- case GL_OPERAND2_ALPHA:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- const unsigned op_alpha = pname - GL_OPERAND0_ALPHA;
- *params = (GLint) texUnit->Combine.OperandA[op_alpha];
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
- }
- break;
- case GL_RGB_SCALE:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- if (texUnit->Combine.ScaleShiftRGB == 0)
- *params = 1;
- else if (texUnit->Combine.ScaleShiftRGB == 1)
- *params = 2;
- else
- *params = 4;
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
- return;
- }
- break;
- case GL_ALPHA_SCALE:
- if (ctx->Extensions.EXT_texture_env_combine ||
- ctx->Extensions.ARB_texture_env_combine) {
- if (texUnit->Combine.ScaleShiftA == 0)
- *params = 1;
- else if (texUnit->Combine.ScaleShiftA == 1)
- *params = 2;
- else
- *params = 4;
- }
- else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
- return;
- }
- break;
- default:
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname=0x%x)",
- pname);
+ if (pname == GL_TEXTURE_ENV_COLOR) {
+ params[0] = FLOAT_TO_INT( texUnit->EnvColor[0] );
+ params[1] = FLOAT_TO_INT( texUnit->EnvColor[1] );
+ params[2] = FLOAT_TO_INT( texUnit->EnvColor[2] );
+ params[3] = FLOAT_TO_INT( texUnit->EnvColor[3] );
+ }
+ else {
+ GLint val = get_texenvi(ctx, texUnit, pname);
+ if (val >= 0) {
+ *params = val;
+ }
}
}
else if (target == GL_TEXTURE_FILTER_CONTROL_EXT) {