diff options
Diffstat (limited to 'src/mesa/main/texstate.c')
| -rw-r--r-- | src/mesa/main/texstate.c | 463 |
1 files changed, 414 insertions, 49 deletions
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c index 32ce600563..64df9016dc 100644 --- a/src/mesa/main/texstate.c +++ b/src/mesa/main/texstate.c @@ -1,4 +1,4 @@ -/* $Id: texstate.c,v 1.13 2000/05/23 20:10:50 brianp Exp $ */ +/* $Id: texstate.c,v 1.14 2000/06/27 21:42:13 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -71,64 +71,287 @@ _mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param ) ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexEnv"); if (target==GL_TEXTURE_ENV) { - - if (pname==GL_TEXTURE_ENV_MODE) { - GLenum mode = (GLenum) (GLint) *param; - switch (mode) { - case GL_ADD: - if (!ctx->Extensions.HaveTextureEnvAdd) { - gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(param)"); - return; - } - /* FALL-THROUGH */ - case GL_MODULATE: - case GL_BLEND: - case GL_DECAL: - case GL_REPLACE: - /* A small optimization for drivers */ - if (texUnit->EnvMode == mode) - return; - - if (MESA_VERBOSE & (VERBOSE_STATE|VERBOSE_TEXTURE)) - fprintf(stderr, "glTexEnv: old mode %s, new mode %s\n", - gl_lookup_enum_by_nr(texUnit->EnvMode), - gl_lookup_enum_by_nr(mode)); - - texUnit->EnvMode = mode; - ctx->NewState |= NEW_TEXTURE_ENV; - break; - default: - gl_error( ctx, GL_INVALID_VALUE, "glTexEnv(param)" ); - return; - } - } - else if (pname==GL_TEXTURE_ENV_COLOR) { - texUnit->EnvColor[0] = CLAMP( param[0], 0.0F, 1.0F ); - texUnit->EnvColor[1] = CLAMP( param[1], 0.0F, 1.0F ); - texUnit->EnvColor[2] = CLAMP( param[2], 0.0F, 1.0F ); - texUnit->EnvColor[3] = CLAMP( param[3], 0.0F, 1.0F ); - } - else { - gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" ); - return; + switch (pname) { + case GL_TEXTURE_ENV_MODE: + { + GLenum mode = (GLenum) (GLint) *param; + switch (mode) { + case GL_MODULATE: + case GL_BLEND: + case GL_DECAL: + case GL_REPLACE: + case GL_ADD: + case GL_COMBINE_EXT: + if (mode == GL_ADD && + !ctx->Extensions.HaveTextureEnvAdd) { + gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(param)"); + return; + } + if (mode == GL_COMBINE_EXT && + !ctx->Extensions.HaveTextureEnvCombine) { + gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(param)"); + return; + } + if (texUnit->EnvMode == mode) + return; /* no change */ + texUnit->EnvMode = mode; + ctx->NewState |= NEW_TEXTURE_ENV; + break; + default: + gl_error( ctx, GL_INVALID_VALUE, "glTexEnv(param)" ); + return; + } + } + break; + case GL_TEXTURE_ENV_COLOR: + texUnit->EnvColor[0] = CLAMP( param[0], 0.0F, 1.0F ); + texUnit->EnvColor[1] = CLAMP( param[1], 0.0F, 1.0F ); + texUnit->EnvColor[2] = CLAMP( param[2], 0.0F, 1.0F ); + texUnit->EnvColor[3] = CLAMP( param[3], 0.0F, 1.0F ); + break; + case GL_COMBINE_RGB_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + GLenum mode = (GLenum) (GLint) *param; + switch (mode) { + case GL_REPLACE: + case GL_MODULATE: + case GL_ADD: + case GL_ADD_SIGNED_EXT: + case GL_INTERPOLATE_EXT: + if (texUnit->CombineModeRGB == mode) + return; /* no change */ + texUnit->CombineModeRGB = mode; + ctx->NewState |= NEW_TEXTURE_ENV; + break; + default: + gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); + return; + } + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + break; + case GL_COMBINE_ALPHA_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + GLenum mode = (GLenum) (GLint) *param; + switch (mode) { + case GL_REPLACE: + case GL_MODULATE: + case GL_ADD: + case GL_ADD_SIGNED_EXT: + case GL_INTERPOLATE_EXT: + if (texUnit->CombineModeA == mode) + return; /* no change */ + texUnit->CombineModeA = mode; + ctx->NewState |= NEW_TEXTURE_ENV; + break; + default: + gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); + return; + } + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + break; + case GL_SOURCE0_RGB_EXT: + case GL_SOURCE1_RGB_EXT: + case GL_SOURCE2_RGB_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + GLenum source = (GLenum) (GLint) *param; + GLuint s = pname - GL_SOURCE0_RGB_EXT; + switch (source) { + case GL_TEXTURE: + case GL_CONSTANT_EXT: + case GL_PRIMARY_COLOR_EXT: + case GL_PREVIOUS_EXT: + if (texUnit->CombineSourceRGB[s] == source) + return; /* no change */ + texUnit->CombineSourceRGB[s] = source; + ctx->NewState |= NEW_TEXTURE_ENV; + break; + default: + gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); + return; + } + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + break; + case GL_SOURCE0_ALPHA_EXT: + case GL_SOURCE1_ALPHA_EXT: + case GL_SOURCE2_ALPHA_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + GLenum source = (GLenum) (GLint) *param; + GLuint s = pname - GL_SOURCE0_ALPHA_EXT; + switch (source) { + case GL_TEXTURE: + case GL_CONSTANT_EXT: + case GL_PRIMARY_COLOR_EXT: + case GL_PREVIOUS_EXT: + if (texUnit->CombineSourceA[s] == source) return; + texUnit->CombineSourceA[s] = source; + ctx->NewState |= NEW_TEXTURE_ENV; + break; + default: + gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); + return; + } + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + break; + case GL_OPERAND0_RGB_EXT: + case GL_OPERAND1_RGB_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + GLenum operand = (GLenum) (GLint) *param; + GLuint s = pname - GL_OPERAND0_RGB_EXT; + switch (operand) { + case GL_SRC_COLOR: + case GL_ONE_MINUS_SRC_COLOR: + texUnit->CombineOperandRGB[s] = operand; + ctx->NewState |= NEW_TEXTURE_ENV; + break; + case GL_SRC_ALPHA: + case GL_ONE_MINUS_SRC_ALPHA: + texUnit->CombineOperandA[s] = operand; + ctx->NewState |= NEW_TEXTURE_ENV; + break; + default: + gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); + return; + } + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + break; + case GL_OPERAND0_ALPHA_EXT: + case GL_OPERAND1_ALPHA_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + GLenum operand = (GLenum) (GLint) *param; + switch (operand) { + case GL_SRC_ALPHA: + case GL_ONE_MINUS_SRC_ALPHA: + texUnit->CombineOperandA[pname-GL_OPERAND0_ALPHA_EXT] + = operand; + ctx->NewState |= NEW_TEXTURE_ENV; + break; + default: + gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); + return; + } + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + break; + case GL_OPERAND2_RGB_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + if ((GLenum) (GLint) *param == GL_SRC_ALPHA) { + texUnit->CombineOperandRGB[2] = (GLenum) (GLint) *param; + ctx->NewState |= NEW_TEXTURE_ENV; + } + else { + gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); + return; + } + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + break; + case GL_OPERAND2_ALPHA_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + if ((GLenum) (GLint) *param == GL_SRC_ALPHA) { + texUnit->CombineOperandA[2] = (GLenum) (GLint) *param; + ctx->NewState |= NEW_TEXTURE_ENV; + } + else { + gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); + return; + } + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + break; + case GL_RGB_SCALE_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + if (*param == 1.0) { + texUnit->CombineScaleShiftRGB = 0; + ctx->NewState |= NEW_TEXTURE_ENV; + } + else if (*param == 2.0) { + texUnit->CombineScaleShiftRGB = 1; + ctx->NewState |= NEW_TEXTURE_ENV; + } + else if (*param == 4.0) { + texUnit->CombineScaleShiftRGB = 2; + ctx->NewState |= NEW_TEXTURE_ENV; + } + else { + gl_error( ctx, GL_INVALID_VALUE, "glTexEnv(param)" ); + return; + } + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + break; + case GL_ALPHA_SCALE: + if (ctx->Extensions.HaveTextureEnvCombine) { + if (*param == 1.0) { + texUnit->CombineScaleShiftA = 0; + ctx->NewState |= NEW_TEXTURE_ENV; + } + else if (*param == 2.0) { + texUnit->CombineScaleShiftA = 1; + ctx->NewState |= NEW_TEXTURE_ENV; + } + else if (*param == 4.0) { + texUnit->CombineScaleShiftA = 2; + ctx->NewState |= NEW_TEXTURE_ENV; + } + else { + gl_error( ctx, GL_INVALID_VALUE, "glTexEnv(param)" ); + return; + } + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + break; + default: + gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" ); + return; } - } else if (target==GL_TEXTURE_FILTER_CONTROL_EXT) { - if (!ctx->Extensions.HaveTextureLodBias) { gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); return; } - - if (pname==GL_TEXTURE_LOD_BIAS_EXT) { + if (pname == GL_TEXTURE_LOD_BIAS_EXT) { texUnit->LodBias = param[0]; } else { gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" ); return; } - } else { gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(target)" ); @@ -184,7 +407,7 @@ void _mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params ) { GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; + const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexEnvfv"); @@ -192,6 +415,7 @@ _mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params ) gl_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(target)" ); return; } + switch (pname) { case GL_TEXTURE_ENV_MODE: *params = ENUM_TO_FLOAT(texUnit->EnvMode); @@ -199,6 +423,34 @@ _mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params ) case GL_TEXTURE_ENV_COLOR: COPY_4FV( params, texUnit->EnvColor ); break; + case GL_RGB_SCALE_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + if (texUnit->CombineScaleShiftRGB == 0) + *params = 1.0; + else if (texUnit->CombineScaleShiftRGB == 1) + *params = 2.0; + else + *params = 4.0; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); + return; + } + break; + case GL_ALPHA_SCALE: + if (ctx->Extensions.HaveTextureEnvCombine) { + if (texUnit->CombineScaleShiftA == 0) + *params = 1.0; + else if (texUnit->CombineScaleShiftA == 1) + *params = 2.0; + else + *params = 4.0; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); + return; + } + break; default: gl_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)" ); } @@ -209,14 +461,15 @@ void _mesa_GetTexEnviv( GLenum target, GLenum pname, GLint *params ) { GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; + const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexEnviv"); - if (target!=GL_TEXTURE_ENV) { + if (target != GL_TEXTURE_ENV) { gl_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(target)" ); return; } + switch (pname) { case GL_TEXTURE_ENV_MODE: *params = (GLint) texUnit->EnvMode; @@ -226,6 +479,118 @@ _mesa_GetTexEnviv( GLenum target, GLenum pname, GLint *params ) 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_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineModeRGB; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } + break; + case GL_COMBINE_ALPHA_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineModeA; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } + break; + case GL_SOURCE0_RGB_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineSourceRGB[0]; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } + break; + case GL_SOURCE1_RGB_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineSourceRGB[1]; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } + break; + case GL_SOURCE2_RGB_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineSourceRGB[2]; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } + break; + case GL_SOURCE0_ALPHA_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineSourceA[0]; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } + break; + case GL_SOURCE1_ALPHA_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineSourceA[1]; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } + break; + case GL_SOURCE2_ALPHA_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineSourceA[2]; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } + break; + case GL_OPERAND0_RGB_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineOperandRGB[0]; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } + break; + case GL_OPERAND1_RGB_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineOperandRGB[1]; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } + break; + case GL_OPERAND2_RGB_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineOperandRGB[2]; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } + break; + case GL_OPERAND0_ALPHA_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineOperandA[0]; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } + break; + case GL_OPERAND1_ALPHA_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineOperandA[1]; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } + break; + case GL_OPERAND2_ALPHA_EXT: + if (ctx->Extensions.HaveTextureEnvCombine) { + *params = (GLint) texUnit->CombineOperandA[2]; + } + else { + gl_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); + } break; default: gl_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)" ); |