diff options
Diffstat (limited to 'src/mesa/main')
-rw-r--r-- | src/mesa/main/extensions.c | 2 | ||||
-rw-r--r-- | src/mesa/main/mtypes.h | 18 | ||||
-rw-r--r-- | src/mesa/main/texenv.c | 1141 | ||||
-rw-r--r-- | src/mesa/main/texenvprogram.c | 121 | ||||
-rw-r--r-- | src/mesa/main/texstate.c | 25 |
5 files changed, 697 insertions, 610 deletions
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c index 43c9d4a788..0b4cbec648 100644 --- a/src/mesa/main/extensions.c +++ b/src/mesa/main/extensions.c @@ -155,6 +155,7 @@ static const struct { { OFF, "GL_NV_fragment_program", F(NV_fragment_program) }, { ON, "GL_NV_light_max_exponent", F(NV_light_max_exponent) }, { OFF, "GL_NV_point_sprite", F(NV_point_sprite) }, + { OFF, "GL_NV_texture_env_combine4", F(NV_texture_env_combine4) }, { OFF, "GL_NV_texture_rectangle", F(NV_texture_rectangle) }, { ON, "GL_NV_texgen_reflection", F(NV_texgen_reflection) }, { OFF, "GL_NV_vertex_program", F(NV_vertex_program) }, @@ -284,6 +285,7 @@ _mesa_enable_sw_extensions(GLcontext *ctx) ctx->Extensions.NV_blend_square = GL_TRUE; /*ctx->Extensions.NV_light_max_exponent = GL_TRUE;*/ ctx->Extensions.NV_point_sprite = GL_TRUE; + ctx->Extensions.NV_texture_env_combine4 = GL_TRUE; ctx->Extensions.NV_texture_rectangle = GL_TRUE; /*ctx->Extensions.NV_texgen_reflection = GL_TRUE;*/ #if FEATURE_NV_vertex_program diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index 39c988f3c8..b09c5910f8 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -1468,23 +1468,20 @@ struct gl_texture_object /** * Texture combine environment state. - * - * \todo - * If GL_NV_texture_env_combine4 is ever supported, the arrays in this - * structure will need to be expanded for 4 elements. + * Up to four combiner sources are possible with GL_NV_texture_env_combine4. */ struct gl_tex_env_combine_state { GLenum ModeRGB; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ GLenum ModeA; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ - GLenum SourceRGB[3]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ - GLenum SourceA[3]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ - GLenum OperandRGB[3]; /**< SRC_COLOR, ONE_MINUS_SRC_COLOR, etc */ - GLenum OperandA[3]; /**< SRC_ALPHA, ONE_MINUS_SRC_ALPHA, etc */ + GLenum SourceRGB[4]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ + GLenum SourceA[4]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ + GLenum OperandRGB[4]; /**< SRC_COLOR, ONE_MINUS_SRC_COLOR, etc */ + GLenum OperandA[4]; /**< SRC_ALPHA, ONE_MINUS_SRC_ALPHA, etc */ GLuint ScaleShiftRGB; /**< 0, 1 or 2 */ GLuint ScaleShiftA; /**< 0, 1 or 2 */ - GLuint _NumArgsRGB; /**< Number of inputs used for the combine mode. */ - GLuint _NumArgsA; /**< Number of inputs used for the combine mode. */ + GLuint _NumArgsRGB; /**< Number of inputs used for the RGB combiner */ + GLuint _NumArgsA; /**< Number of inputs used for the A combiner */ }; @@ -2649,6 +2646,7 @@ struct gl_extensions GLboolean NV_light_max_exponent; GLboolean NV_point_sprite; GLboolean NV_texgen_reflection; + GLboolean NV_texture_env_combine4; GLboolean NV_texture_rectangle; GLboolean NV_vertex_program; GLboolean NV_vertex_program1_1; diff --git a/src/mesa/main/texenv.c b/src/mesa/main/texenv.c index e072cea136..097923182a 100644 --- a/src/mesa/main/texenv.c +++ b/src/mesa/main/texenv.c @@ -1,8 +1,9 @@ /* * Mesa 3-D graphics library - * Version: 7.1 + * Version: 7.5 * * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. 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"), @@ -37,6 +38,415 @@ #include "math/m_xform.h" +#define TE_ERROR(errCode, msg, value) \ + _mesa_error(ctx, errCode, msg, _mesa_lookup_enum_by_nr(value)); + + +/** Set texture env mode */ +static void +set_env_mode(GLcontext *ctx, + struct gl_texture_unit *texUnit, + GLenum mode) +{ + GLboolean legal; + + if (texUnit->EnvMode == mode) + return; + + switch (mode) { + case GL_MODULATE: + case GL_BLEND: + case GL_DECAL: + case GL_REPLACE: + legal = GL_TRUE; + break; + case GL_REPLACE_EXT: + mode = GL_REPLACE; /* GL_REPLACE_EXT != GL_REPLACE */ + legal = GL_TRUE; + break; + case GL_ADD: + legal = ctx->Extensions.EXT_texture_env_add; + break; + case GL_COMBINE: + legal = (ctx->Extensions.EXT_texture_env_combine || + ctx->Extensions.ARB_texture_env_combine); + break; + case GL_COMBINE4_NV: + legal = ctx->Extensions.NV_texture_env_combine4; + break; + default: + legal = GL_FALSE; + } + + if (legal) { + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->EnvMode = mode; + } + else { + TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); + } +} + + +static void +set_env_color(GLcontext *ctx, + struct gl_texture_unit *texUnit, + const GLfloat *color) +{ + GLfloat tmp[4]; + tmp[0] = CLAMP(color[0], 0.0F, 1.0F); + tmp[1] = CLAMP(color[1], 0.0F, 1.0F); + tmp[2] = CLAMP(color[2], 0.0F, 1.0F); + tmp[3] = CLAMP(color[3], 0.0F, 1.0F); + if (TEST_EQ_4V(tmp, texUnit->EnvColor)) + return; + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + COPY_4FV(texUnit->EnvColor, tmp); +} + + +/** Set an RGB or A combiner mode/function */ +static void +set_combiner_mode(GLcontext *ctx, + struct gl_texture_unit *texUnit, + GLenum pname, GLenum mode) +{ + GLboolean legal; + + if (!ctx->Extensions.EXT_texture_env_combine && + !ctx->Extensions.ARB_texture_env_combine) { + _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + + switch (mode) { + case GL_REPLACE: + case GL_MODULATE: + case GL_ADD: + case GL_ADD_SIGNED: + case GL_INTERPOLATE: + legal = GL_TRUE; + break; + case GL_SUBTRACT: + legal = ctx->Extensions.ARB_texture_env_combine; + break; + case GL_DOT3_RGB_EXT: + case GL_DOT3_RGBA_EXT: + legal = (ctx->Extensions.EXT_texture_env_dot3 && + pname == GL_COMBINE_RGB); + break; + case GL_DOT3_RGB: + case GL_DOT3_RGBA: + legal = (ctx->Extensions.ARB_texture_env_dot3 && + pname == GL_COMBINE_RGB); + break; + case GL_MODULATE_ADD_ATI: + case GL_MODULATE_SIGNED_ADD_ATI: + case GL_MODULATE_SUBTRACT_ATI: + legal =ctx->Extensions.ATI_texture_env_combine3; + break; + default: + legal = GL_FALSE; + } + + if (!legal) { + TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); + return; + } + + switch (pname) { + case GL_COMBINE_RGB: + if (texUnit->Combine.ModeRGB == mode) + return; + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.ModeRGB = mode; + break; + + case GL_COMBINE_ALPHA: + if (texUnit->Combine.ModeA == mode) + return; + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.ModeA = mode; + break; + default: + TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); + } +} + + + +/** Set an RGB or A combiner source term */ +static void +set_combiner_source(GLcontext *ctx, + struct gl_texture_unit *texUnit, + GLenum pname, GLenum param) +{ + GLuint src; + GLboolean alpha, legal; + + if (!ctx->Extensions.EXT_texture_env_combine && + !ctx->Extensions.ARB_texture_env_combine) { + _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + + /* + * Translate pname to (src, alpha). + */ + switch (pname) { + case GL_SOURCE0_RGB: + src = 0; + alpha = GL_FALSE; + break; + case GL_SOURCE1_RGB: + src = 1; + alpha = GL_FALSE; + break; + case GL_SOURCE2_RGB: + 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; + break; + case GL_SOURCE1_ALPHA: + src = 1; + alpha = GL_TRUE; + break; + case GL_SOURCE2_ALPHA: + 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) + */ + switch (param) { + case GL_TEXTURE: + case GL_CONSTANT: + case GL_PRIMARY_COLOR: + case GL_PREVIOUS: + legal = GL_TRUE; + break; + case GL_TEXTURE0: + case GL_TEXTURE1: + case GL_TEXTURE2: + case GL_TEXTURE3: + case GL_TEXTURE4: + case GL_TEXTURE5: + case GL_TEXTURE6: + case GL_TEXTURE7: + legal = (ctx->Extensions.ARB_texture_env_crossbar && + 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; + default: + legal = GL_FALSE; + } + + if (!legal) { + TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", param); + return; + } + + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + + if (alpha) + texUnit->Combine.SourceA[src] = param; + else + texUnit->Combine.SourceRGB[src] = param; +} + + +/** Set an RGB or A combiner operand term */ +static void +set_combiner_operand(GLcontext *ctx, + struct gl_texture_unit *texUnit, + GLenum pname, GLenum param) +{ + GLuint op; + GLboolean alpha, legal; + + if (!ctx->Extensions.EXT_texture_env_combine && + !ctx->Extensions.ARB_texture_env_combine) { + _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + + switch (pname) { + case GL_OPERAND0_RGB: + op = 0; + alpha = GL_FALSE; + break; + case GL_OPERAND1_RGB: + op = 1; + alpha = GL_FALSE; + break; + case GL_OPERAND2_RGB: + if (ctx->Extensions.ARB_texture_env_combine) { + op = 2; + alpha = GL_FALSE; + } + else { + TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); + 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; + break; + case GL_OPERAND1_ALPHA: + op = 1; + alpha = GL_TRUE; + break; + case GL_OPERAND2_ALPHA: + if (ctx->Extensions.ARB_texture_env_combine) { + op = 2; + alpha = GL_TRUE; + } + else { + TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); + 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) + */ + switch (param) { + case GL_SRC_COLOR: + case GL_ONE_MINUS_SRC_COLOR: + legal = !alpha; + break; + case GL_SRC_ALPHA: + case GL_ONE_MINUS_SRC_ALPHA: + legal = GL_TRUE; + break; + default: + legal = GL_FALSE; + } + + if (!legal) { + TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", param); + return; + } + + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + + if (alpha) + texUnit->Combine.OperandA[op] = param; + else + texUnit->Combine.OperandRGB[op] = param; +} + + +static void +set_combiner_scale(GLcontext *ctx, + struct gl_texture_unit *texUnit, + GLenum pname, GLfloat scale) +{ + GLuint shift; + + if (!ctx->Extensions.EXT_texture_env_combine && + !ctx->Extensions.ARB_texture_env_combine) { + _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); + return; + } + + if (scale == 1.0F) { + shift = 0; + } + else if (scale == 2.0F) { + shift = 1; + } + else if (scale == 4.0F) { + shift = 2; + } + else { + _mesa_error( ctx, GL_INVALID_VALUE, + "glTexEnv(GL_RGB_SCALE not 1, 2 or 4)" ); + return; + } + + switch (pname) { + case GL_RGB_SCALE: + if (texUnit->Combine.ScaleShiftRGB == shift) + return; + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.ScaleShiftRGB = shift; + break; + case GL_ALPHA_SCALE: + if (texUnit->Combine.ScaleShiftA == shift) + return; + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.ScaleShiftA = shift; + break; + default: + TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); + } +} + + void GLAPIENTRY _mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param ) @@ -55,377 +465,41 @@ _mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param ) texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; -#define TE_ERROR(errCode, msg, value) \ - _mesa_error(ctx, errCode, msg, _mesa_lookup_enum_by_nr(value)); - if (target == GL_TEXTURE_ENV) { switch (pname) { case GL_TEXTURE_ENV_MODE: - { - GLenum mode = (GLenum) (GLint) *param; - if (mode == GL_REPLACE_EXT) - mode = GL_REPLACE; - if (texUnit->EnvMode == mode) - return; - if (mode == GL_MODULATE || - mode == GL_BLEND || - mode == GL_DECAL || - mode == GL_REPLACE || - (mode == GL_ADD && ctx->Extensions.EXT_texture_env_add) || - (mode == GL_COMBINE && - (ctx->Extensions.EXT_texture_env_combine || - ctx->Extensions.ARB_texture_env_combine))) { - /* legal */ - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->EnvMode = mode; - } - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); - return; - } - } + set_env_mode(ctx, texUnit, (GLenum) (GLint) param[0]); break; case GL_TEXTURE_ENV_COLOR: - { - GLfloat tmp[4]; - tmp[0] = CLAMP( param[0], 0.0F, 1.0F ); - tmp[1] = CLAMP( param[1], 0.0F, 1.0F ); - tmp[2] = CLAMP( param[2], 0.0F, 1.0F ); - tmp[3] = CLAMP( param[3], 0.0F, 1.0F ); - if (TEST_EQ_4V(tmp, texUnit->EnvColor)) - return; - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - COPY_4FV(texUnit->EnvColor, tmp); - } + set_env_color(ctx, texUnit, param); break; case GL_COMBINE_RGB: - if (ctx->Extensions.EXT_texture_env_combine || - ctx->Extensions.ARB_texture_env_combine) { - const GLenum mode = (GLenum) (GLint) *param; - if (texUnit->Combine.ModeRGB == mode) - return; - switch (mode) { - case GL_REPLACE: - case GL_MODULATE: - case GL_ADD: - case GL_ADD_SIGNED: - case GL_INTERPOLATE: - /* OK */ - break; - case GL_SUBTRACT: - if (!ctx->Extensions.ARB_texture_env_combine) { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); - return; - } - break; - case GL_DOT3_RGB_EXT: - case GL_DOT3_RGBA_EXT: - if (!ctx->Extensions.EXT_texture_env_dot3) { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); - return; - } - break; - case GL_DOT3_RGB: - case GL_DOT3_RGBA: - if (!ctx->Extensions.ARB_texture_env_dot3) { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); - return; - } - break; - case GL_MODULATE_ADD_ATI: - case GL_MODULATE_SIGNED_ADD_ATI: - case GL_MODULATE_SUBTRACT_ATI: - if (!ctx->Extensions.ATI_texture_env_combine3) { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); - return; - } - break; - default: - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); - return; - } - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->Combine.ModeRGB = mode; - } - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); - return; - } - break; case GL_COMBINE_ALPHA: - if (ctx->Extensions.EXT_texture_env_combine || - ctx->Extensions.ARB_texture_env_combine) { - const GLenum mode = (GLenum) (GLint) *param; - if (texUnit->Combine.ModeA == mode) - return; - switch (mode) { - case GL_REPLACE: - case GL_MODULATE: - case GL_ADD: - case GL_ADD_SIGNED: - case GL_INTERPOLATE: - /* OK */ - break; - case GL_SUBTRACT: - if (!ctx->Extensions.ARB_texture_env_combine) { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); - return; - } - break; - case GL_MODULATE_ADD_ATI: - case GL_MODULATE_SIGNED_ADD_ATI: - case GL_MODULATE_SUBTRACT_ATI: - if (!ctx->Extensions.ATI_texture_env_combine3) { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); - return; - } - break; - default: - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); - return; - } - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->Combine.ModeA = mode; - } - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); - return; - } + set_combiner_mode(ctx, texUnit, pname, (GLenum) (GLint) param[0]); 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 GLenum source = (GLenum) (GLint) *param; - const GLuint s = pname - GL_SOURCE0_RGB; - if (texUnit->Combine.SourceRGB[s] == source) - return; - if (source == GL_TEXTURE || - source == GL_CONSTANT || - source == GL_PRIMARY_COLOR || - source == GL_PREVIOUS || - (ctx->Extensions.ARB_texture_env_crossbar && - source >= GL_TEXTURE0 && - source < GL_TEXTURE0 + ctx->Const.MaxTextureUnits) || - (ctx->Extensions.ATI_texture_env_combine3 && - (source == GL_ZERO || source == GL_ONE))) { - /* legal */ - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->Combine.SourceRGB[s] = source; - } - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", source); - return; - } - } - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); - return; - } - break; + case GL_SOURCE3_RGB_NV: 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 GLenum source = (GLenum) (GLint) *param; - const GLuint s = pname - GL_SOURCE0_ALPHA; - if (texUnit->Combine.SourceA[s] == source) - return; - if (source == GL_TEXTURE || - source == GL_CONSTANT || - source == GL_PRIMARY_COLOR || - source == GL_PREVIOUS || - (ctx->Extensions.ARB_texture_env_crossbar && - source >= GL_TEXTURE0 && - source < GL_TEXTURE0 + ctx->Const.MaxTextureUnits) || - (ctx->Extensions.ATI_texture_env_combine3 && - (source == GL_ZERO || source == GL_ONE))) { - /* legal */ - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->Combine.SourceA[s] = source; - } - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", source); - return; - } - } - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); - return; - } + case GL_SOURCE3_ALPHA_NV: + set_combiner_source(ctx, texUnit, pname, (GLenum) (GLint) param[0]); break; case GL_OPERAND0_RGB: case GL_OPERAND1_RGB: - if (ctx->Extensions.EXT_texture_env_combine || - ctx->Extensions.ARB_texture_env_combine) { - const GLenum operand = (GLenum) (GLint) *param; - const GLuint s = pname - GL_OPERAND0_RGB; - if (texUnit->Combine.OperandRGB[s] == operand) - return; - switch (operand) { - case GL_SRC_COLOR: - case GL_ONE_MINUS_SRC_COLOR: - case GL_SRC_ALPHA: - case GL_ONE_MINUS_SRC_ALPHA: - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->Combine.OperandRGB[s] = operand; - break; - default: - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand); - return; - } - } - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); - return; - } - break; + case GL_OPERAND2_RGB: + case GL_OPERAND3_RGB_NV: case GL_OPERAND0_ALPHA: case GL_OPERAND1_ALPHA: - if (ctx->Extensions.EXT_texture_env_combine || - ctx->Extensions.ARB_texture_env_combine) { - const GLenum operand = (GLenum) (GLint) *param; - if (texUnit->Combine.OperandA[pname-GL_OPERAND0_ALPHA] == operand) - return; - switch (operand) { - case GL_SRC_ALPHA: - case GL_ONE_MINUS_SRC_ALPHA: - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->Combine.OperandA[pname-GL_OPERAND0_ALPHA] = operand; - break; - default: - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand); - return; - } - } - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); - return; - } - break; - case GL_OPERAND2_RGB: - if (ctx->Extensions.ARB_texture_env_combine) { - const GLenum operand = (GLenum) (GLint) *param; - if (texUnit->Combine.OperandRGB[2] == operand) - return; - switch (operand) { - case GL_SRC_COLOR: /* ARB combine only */ - case GL_ONE_MINUS_SRC_COLOR: /* ARB combine only */ - case GL_SRC_ALPHA: - case GL_ONE_MINUS_SRC_ALPHA: /* ARB combine only */ - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->Combine.OperandRGB[2] = operand; - break; - default: - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand); - return; - } - } - else if (ctx->Extensions.EXT_texture_env_combine) { - const GLenum operand = (GLenum) (GLint) *param; - if (texUnit->Combine.OperandRGB[2] == operand) - return; - /* operand must be GL_SRC_ALPHA which is the initial value - thus - don't need to actually compare the operand to the possible value */ - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand); - return; - } - } - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); - return; - } - break; case GL_OPERAND2_ALPHA: - if (ctx->Extensions.ARB_texture_env_combine) { - const GLenum operand = (GLenum) (GLint) *param; - if (texUnit->Combine.OperandA[2] == operand) - return; - switch (operand) { - case GL_SRC_ALPHA: - case GL_ONE_MINUS_SRC_ALPHA: /* ARB combine only */ - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->Combine.OperandA[2] = operand; - break; - default: - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand); - return; - } - } - else if (ctx->Extensions.EXT_texture_env_combine) { - const GLenum operand = (GLenum) (GLint) *param; - if (texUnit->Combine.OperandA[2] == operand) - return; - /* operand must be GL_SRC_ALPHA which is the initial value - thus - don't need to actually compare the operand to the possible value */ - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand); - return; - } - } - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); - return; - } + case GL_OPERAND3_ALPHA_NV: + set_combiner_operand(ctx, texUnit, pname, (GLenum) (GLint) param[0]); break; case GL_RGB_SCALE: - if (ctx->Extensions.EXT_texture_env_combine || - ctx->Extensions.ARB_texture_env_combine) { - GLuint newshift; - if (*param == 1.0) { - newshift = 0; - } - else if (*param == 2.0) { - newshift = 1; - } - else if (*param == 4.0) { - newshift = 2; - } - else { - _mesa_error( ctx, GL_INVALID_VALUE, - "glTexEnv(GL_RGB_SCALE not 1, 2 or 4)" ); - return; - } - if (texUnit->Combine.ScaleShiftRGB == newshift) - return; - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->Combine.ScaleShiftRGB = newshift; - } - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); - return; - } - break; case GL_ALPHA_SCALE: - if (ctx->Extensions.EXT_texture_env_combine || - ctx->Extensions.ARB_texture_env_combine) { - GLuint newshift; - if (*param == 1.0) { - newshift = 0; - } - else if (*param == 2.0) { - newshift = 1; - } - else if (*param == 4.0) { - newshift = 2; - } - else { - _mesa_error( ctx, GL_INVALID_VALUE, - "glTexEnv(GL_ALPHA_SCALE not 1, 2 or 4)" ); - return; - } - if (texUnit->Combine.ScaleShiftA == newshift) - return; - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->Combine.ScaleShiftA = newshift; - } - else { - TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); - return; - } + set_combiner_scale(ctx, texUnit, pname, param[0]); break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" ); @@ -533,6 +607,144 @@ _mesa_TexEnviv( GLenum target, GLenum pname, const GLint *param ) } + +/** + * 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 ) { @@ -551,111 +763,14 @@ _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) { @@ -712,115 +827,17 @@ _mesa_GetTexEnviv( GLenum target, GLenum pname, GLint *params ) 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) { diff --git a/src/mesa/main/texenvprogram.c b/src/mesa/main/texenvprogram.c index 6a57d50193..066f3bd0be 100644 --- a/src/mesa/main/texenvprogram.c +++ b/src/mesa/main/texenvprogram.c @@ -2,6 +2,7 @@ * * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. + * Copyright 2009 VMware, Inc. All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the @@ -38,6 +39,9 @@ #include "texenvprogram.h" +#define MAX_TERMS 4 + + /* * Note on texture units: * @@ -89,13 +93,13 @@ struct state_key { GLuint ScaleShiftRGB:2; GLuint ScaleShiftA:2; - GLuint NumArgsRGB:2; + GLuint NumArgsRGB:3; GLuint ModeRGB:4; - struct mode_opt OptRGB[3]; + struct mode_opt OptRGB[MAX_TERMS]; - GLuint NumArgsA:2; + GLuint NumArgsA:3; GLuint ModeA:4; - struct mode_opt OptA[3]; + struct mode_opt OptA[MAX_TERMS]; } unit[8]; }; @@ -131,7 +135,9 @@ static GLuint translate_operand( GLenum operand ) case GL_ONE_MINUS_SRC_ALPHA: return OPR_ONE_MINUS_SRC_ALPHA; case GL_ZERO: return OPR_ZERO; case GL_ONE: return OPR_ONE; - default: return OPR_UNKNOWN; + default: + assert(0); + return OPR_UNKNOWN; } } @@ -147,6 +153,7 @@ static GLuint translate_operand( GLenum operand ) #define SRC_CONSTANT 9 #define SRC_PRIMARY_COLOR 10 #define SRC_PREVIOUS 11 +#define SRC_ZERO 12 #define SRC_UNKNOWN 15 static GLuint translate_source( GLenum src ) @@ -164,32 +171,49 @@ static GLuint translate_source( GLenum src ) case GL_CONSTANT: return SRC_CONSTANT; case GL_PRIMARY_COLOR: return SRC_PRIMARY_COLOR; case GL_PREVIOUS: return SRC_PREVIOUS; - default: return SRC_UNKNOWN; + case GL_ZERO: + return SRC_ZERO; + default: + assert(0); + return SRC_UNKNOWN; } } -#define MODE_REPLACE 0 -#define MODE_MODULATE 1 -#define MODE_ADD 2 -#define MODE_ADD_SIGNED 3 -#define MODE_INTERPOLATE 4 -#define MODE_SUBTRACT 5 -#define MODE_DOT3_RGB 6 -#define MODE_DOT3_RGB_EXT 7 -#define MODE_DOT3_RGBA 8 -#define MODE_DOT3_RGBA_EXT 9 -#define MODE_MODULATE_ADD_ATI 10 -#define MODE_MODULATE_SIGNED_ADD_ATI 11 -#define MODE_MODULATE_SUBTRACT_ATI 12 -#define MODE_UNKNOWN 15 - -static GLuint translate_mode( GLenum mode ) +#define MODE_REPLACE 0 /* r = a0 */ +#define MODE_MODULATE 1 /* r = a0 * a1 */ +#define MODE_ADD 2 /* r = a0 + a1 */ +#define MODE_ADD_SIGNED 3 /* r = a0 + a1 - 0.5 */ +#define MODE_INTERPOLATE 4 /* r = a0 * a2 + a1 * (1 - a2) */ +#define MODE_SUBTRACT 5 /* r = a0 - a1 */ +#define MODE_DOT3_RGB 6 /* r = a0 . a1 */ +#define MODE_DOT3_RGB_EXT 7 /* r = a0 . a1 */ +#define MODE_DOT3_RGBA 8 /* r = a0 . a1 */ +#define MODE_DOT3_RGBA_EXT 9 /* r = a0 . a1 */ +#define MODE_MODULATE_ADD_ATI 10 /* r = a0 * a2 + a1 */ +#define MODE_MODULATE_SIGNED_ADD_ATI 11 /* r = a0 * a2 + a1 - 0.5 */ +#define MODE_MODULATE_SUBTRACT_ATI 12 /* r = a0 * a2 - a1 */ +#define MODE_ADD_PRODUCTS 13 /* r = a0 * a1 + a2 * a3 */ +#define MODE_ADD_PRODUCTS_SIGNED 14 /* r = a0 * a1 + a2 * a3 - 0.5 */ +#define MODE_UNKNOWN 15 + +/** + * Translate GL combiner state into a MODE_x value + */ +static GLuint translate_mode( GLenum envMode, GLenum mode ) { switch (mode) { case GL_REPLACE: return MODE_REPLACE; case GL_MODULATE: return MODE_MODULATE; - case GL_ADD: return MODE_ADD; - case GL_ADD_SIGNED: return MODE_ADD_SIGNED; + case GL_ADD: + if (envMode == GL_COMBINE4_NV) + return MODE_ADD_PRODUCTS; + else + return MODE_ADD; + case GL_ADD_SIGNED: + if (envMode == GL_COMBINE4_NV) + return MODE_ADD_PRODUCTS_SIGNED; + else + return MODE_ADD_SIGNED; case GL_INTERPOLATE: return MODE_INTERPOLATE; case GL_SUBTRACT: return MODE_SUBTRACT; case GL_DOT3_RGB: return MODE_DOT3_RGB; @@ -199,7 +223,9 @@ static GLuint translate_mode( GLenum mode ) case GL_MODULATE_ADD_ATI: return MODE_MODULATE_ADD_ATI; case GL_MODULATE_SIGNED_ADD_ATI: return MODE_MODULATE_SIGNED_ADD_ATI; case GL_MODULATE_SUBTRACT_ATI: return MODE_MODULATE_SUBTRACT_ATI; - default: return MODE_UNKNOWN; + default: + assert(0); + return MODE_UNKNOWN; } } @@ -212,7 +238,11 @@ static GLuint translate_tex_src_bit( GLbitfield bit ) case TEXTURE_RECT_BIT: return TEXTURE_RECT_INDEX; case TEXTURE_3D_BIT: return TEXTURE_3D_INDEX; case TEXTURE_CUBE_BIT: return TEXTURE_CUBE_INDEX; - default: return TEXTURE_UNKNOWN_INDEX; + case TEXTURE_1D_ARRAY_BIT: return TEXTURE_1D_ARRAY_INDEX; + case TEXTURE_2D_ARRAY_BIT: return TEXTURE_2D_ARRAY_INDEX; + default: + assert(0); + return TEXTURE_UNKNOWN_INDEX; } } @@ -248,14 +278,14 @@ static void make_state_key( GLcontext *ctx, struct state_key *key ) key->unit[i].NumArgsA = texUnit->_CurrentCombine->_NumArgsA; key->unit[i].ModeRGB = - translate_mode(texUnit->_CurrentCombine->ModeRGB); + translate_mode(texUnit->EnvMode, texUnit->_CurrentCombine->ModeRGB); key->unit[i].ModeA = - translate_mode(texUnit->_CurrentCombine->ModeA); + translate_mode(texUnit->EnvMode, texUnit->_CurrentCombine->ModeA); key->unit[i].ScaleShiftRGB = texUnit->_CurrentCombine->ScaleShiftRGB; key->unit[i].ScaleShiftA = texUnit->_CurrentCombine->ScaleShiftA; - for (j=0;j<3;j++) { + for (j = 0; j < MAX_TERMS; j++) { key->unit[i].OptRGB[j].Operand = translate_operand(texUnit->_CurrentCombine->OperandRGB[j]); key->unit[i].OptA[j].Operand = @@ -677,12 +707,17 @@ static struct ureg get_source( struct texenv_fragment_program *p, case SRC_PRIMARY_COLOR: return register_input(p, FRAG_ATTRIB_COL0); + case SRC_ZERO: + return get_zero(p); + case SRC_PREVIOUS: - default: if (is_undef(p->src_previous)) return register_input(p, FRAG_ATTRIB_COL0); else return p->src_previous; + + default: + assert(0); } } @@ -723,7 +758,9 @@ static struct ureg emit_combine_source( struct texenv_fragment_program *p, case OPR_ONE: return get_one(p); case OPR_SRC_COLOR: + return src; default: + assert(0); return src; } } @@ -772,10 +809,12 @@ static struct ureg emit_combine( struct texenv_fragment_program *p, GLuint mode, const struct mode_opt *opt) { - struct ureg src[3]; + struct ureg src[MAX_TERMS]; struct ureg tmp, half; GLuint i; + assert(nr <= MAX_TERMS); + tmp = undef; /* silence warning (bug 5318) */ for (i = 0; i < nr; i++) @@ -851,7 +890,26 @@ static struct ureg emit_combine( struct texenv_fragment_program *p, /* Arg0 * Arg2 - Arg1 */ emit_arith( p, OPCODE_MAD, dest, mask, 0, src[0], src[2], negate(src[1]) ); return dest; + case MODE_ADD_PRODUCTS: + /* Arg0 * Arg1 + Arg2 * Arg3 */ + { + struct ureg tmp0 = get_temp(p); + emit_arith( p, OPCODE_MUL, tmp0, mask, 0, src[0], src[1], undef ); + emit_arith( p, OPCODE_MAD, dest, mask, saturate, src[2], src[3], tmp0 ); + } + return dest; + case MODE_ADD_PRODUCTS_SIGNED: + /* Arg0 * Arg1 + Arg2 * Arg3 - 0.5 */ + { + struct ureg tmp0 = get_temp(p); + half = get_half(p); + emit_arith( p, OPCODE_MUL, tmp0, mask, 0, src[0], src[1], undef ); + emit_arith( p, OPCODE_MAD, tmp0, mask, 0, src[2], src[3], tmp0 ); + emit_arith( p, OPCODE_SUB, dest, mask, saturate, tmp0, half, undef ); + } + return dest; default: + assert(0); return src[0]; } } @@ -1007,6 +1065,7 @@ static GLboolean load_texenv_source( struct texenv_fragment_program *p, break; default: + /* not a texture src - do nothing */ break; } diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c index 9bfb7e0ec2..7cddec0bce 100644 --- a/src/mesa/main/texstate.c +++ b/src/mesa/main/texstate.c @@ -53,10 +53,10 @@ */ static const struct gl_tex_env_combine_state default_combine_state = { GL_MODULATE, GL_MODULATE, - { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT }, - { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT }, - { GL_SRC_COLOR, GL_SRC_COLOR, GL_SRC_ALPHA }, - { GL_SRC_ALPHA, GL_SRC_ALPHA, GL_SRC_ALPHA }, + { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT, GL_CONSTANT }, + { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT, GL_CONSTANT }, + { GL_SRC_COLOR, GL_SRC_COLOR, GL_SRC_ALPHA, GL_SRC_ALPHA }, + { GL_SRC_ALPHA, GL_SRC_ALPHA, GL_SRC_ALPHA, GL_SRC_ALPHA }, 0, 0, 2, 2 }; @@ -551,7 +551,8 @@ update_texture_state( GLcontext *ctx ) if (texUnit->_ReallyEnabled) ctx->Texture._EnabledUnits |= (1 << unit); - if (texUnit->EnvMode == GL_COMBINE) { + if (texUnit->EnvMode == GL_COMBINE || + texUnit->EnvMode == GL_COMBINE4_NV) { texUnit->_CurrentCombine = & texUnit->Combine; } else { @@ -572,9 +573,14 @@ update_texture_state( GLcontext *ctx ) case GL_REPLACE: texUnit->_CurrentCombine->_NumArgsRGB = 1; break; - case GL_MODULATE: case GL_ADD: case GL_ADD_SIGNED: + if (texUnit->EnvMode == GL_COMBINE4_NV) + texUnit->_CurrentCombine->_NumArgsRGB = 4; + else + texUnit->_CurrentCombine->_NumArgsRGB = 2; + break; + case GL_MODULATE: case GL_SUBTRACT: case GL_DOT3_RGB: case GL_DOT3_RGBA: @@ -598,9 +604,14 @@ update_texture_state( GLcontext *ctx ) case GL_REPLACE: texUnit->_CurrentCombine->_NumArgsA = 1; break; - case GL_MODULATE: case GL_ADD: case GL_ADD_SIGNED: + if (texUnit->EnvMode == GL_COMBINE4_NV) + texUnit->_CurrentCombine->_NumArgsA = 4; + else + texUnit->_CurrentCombine->_NumArgsA = 2; + break; + case GL_MODULATE: case GL_SUBTRACT: texUnit->_CurrentCombine->_NumArgsA = 2; break; |