mesa: Change "BRIAN PAUL" to "THE AUTHORS" in license text.

[mesa.git] / src / mesa / main / texenv.c

diff --git a/src/mesa/main/texenv.c b/src/mesa/main/texenv.c
index 9228e354a4dbc74c4f10bb93837a7174a5fa47cb..b9efe8683bbcd5c4eb836586c4f1deb4afa40c7b 100644 (file)
--- a/src/mesa/main/texenv.c
+++ b/src/mesa/main/texenv.c
@@ -18,7 +18,7 @@
  * 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
+ * THE AUTHORS 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.
  */
@@ -32,6 +32,7 @@
 
 #include "main/glheader.h"
 #include "main/context.h"
+#include "main/blend.h"
 #include "main/enums.h"
 #include "main/macros.h"
 #include "main/mtypes.h"
@@ -60,19 +61,14 @@ set_env_mode(struct gl_context *ctx,
    case GL_BLEND:
    case GL_DECAL:
    case GL_REPLACE:
+   case GL_ADD:
+   case GL_COMBINE:
       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;
@@ -114,12 +110,6 @@ set_combiner_mode(struct gl_context *ctx,
 {
    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:
@@ -133,7 +123,8 @@ set_combiner_mode(struct gl_context *ctx,
       break;
    case GL_DOT3_RGB_EXT:
    case GL_DOT3_RGBA_EXT:
-      legal = (ctx->Extensions.EXT_texture_env_dot3 &&
+      legal = (ctx->API == API_OPENGL_COMPAT &&
+               ctx->Extensions.EXT_texture_env_dot3 &&
                pname == GL_COMBINE_RGB);
       break;
    case GL_DOT3_RGB:
@@ -144,10 +135,12 @@ set_combiner_mode(struct gl_context *ctx,
    case GL_MODULATE_ADD_ATI:
    case GL_MODULATE_SIGNED_ADD_ATI:
    case GL_MODULATE_SUBTRACT_ATI:
-      legal = ctx->Extensions.ATI_texture_env_combine3;
+      legal = (ctx->API == API_OPENGL_COMPAT &&
+               ctx->Extensions.ATI_texture_env_combine3);
       break;
    case GL_BUMP_ENVMAP_ATI:
-      legal = (ctx->Extensions.ATI_envmap_bumpmap &&
+      legal = (ctx->API == API_OPENGL_COMPAT &&
+               ctx->Extensions.ATI_envmap_bumpmap &&
                pname == GL_COMBINE_RGB);
       break;
    default:
@@ -189,12 +182,6 @@ set_combiner_source(struct gl_context *ctx,
    GLuint term;
    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 (term, alpha).
     *
@@ -220,7 +207,8 @@ set_combiner_source(struct gl_context *ctx,
       return;
    }
 
-   if ((term == 3) && !ctx->Extensions.NV_texture_env_combine4) {
+   if ((term == 3) && (ctx->API != API_OPENGL_COMPAT
+                       || !ctx->Extensions.NV_texture_env_combine4)) {
       TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
       return;
    }
@@ -249,11 +237,13 @@ set_combiner_source(struct gl_context *ctx,
                param - GL_TEXTURE0 < ctx->Const.MaxTextureUnits);
       break;
    case GL_ZERO:
-      legal = (ctx->Extensions.ATI_texture_env_combine3 ||
-               ctx->Extensions.NV_texture_env_combine4);
+      legal = (ctx->API == API_OPENGL_COMPAT &&
+               (ctx->Extensions.ATI_texture_env_combine3 ||
+                ctx->Extensions.NV_texture_env_combine4));
       break;
    case GL_ONE:
-      legal = ctx->Extensions.ATI_texture_env_combine3;
+      legal = (ctx->API == API_OPENGL_COMPAT &&
+               ctx->Extensions.ATI_texture_env_combine3);
       break;
    default:
       legal = GL_FALSE;
@@ -282,12 +272,6 @@ set_combiner_operand(struct gl_context *ctx,
    GLuint term;
    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;
-   }
-
    /* The enums were given sequential values for a reason.
     */
    switch (pname) {
@@ -310,7 +294,8 @@ set_combiner_operand(struct gl_context *ctx,
       return;
    }
 
-   if ((term == 3) && !ctx->Extensions.NV_texture_env_combine4) {
+   if ((term == 3) && (ctx->API != API_OPENGL_COMPAT
+                       || !ctx->Extensions.NV_texture_env_combine4)) {
       TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
       return;
    }
@@ -324,8 +309,8 @@ set_combiner_operand(struct gl_context *ctx,
    case GL_SRC_COLOR:
    case GL_ONE_MINUS_SRC_COLOR:
       /* The color input can only be used with GL_OPERAND[01]_RGB in the EXT
-       * version.  In the ARB and NV versions they can be used for any RGB
-       * operand.
+       * version.  In the ARB and NV versions and OpenGL ES 1.x they can be
+       * used for any RGB operand.
        */
       legal = !alpha
         && ((term < 2) || ctx->Extensions.ARB_texture_env_combine
@@ -334,7 +319,7 @@ set_combiner_operand(struct gl_context *ctx,
    case GL_ONE_MINUS_SRC_ALPHA:
       /* GL_ONE_MINUS_SRC_ALPHA can only be used with
        * GL_OPERAND[01]_(RGB|ALPHA) in the EXT version.  In the ARB and NV
-       * versions it can be used for any operand.
+       * versions and OpenGL ES 1.x it can be used for any operand.
        */
       legal = (term < 2) || ctx->Extensions.ARB_texture_env_combine
         || ctx->Extensions.NV_texture_env_combine4;
@@ -367,12 +352,6 @@ set_combiner_scale(struct gl_context *ctx,
 {
    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;
    }
@@ -414,12 +393,10 @@ _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);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    maxUnit = (target == GL_POINT_SPRITE_NV && pname == GL_COORD_REPLACE_NV)
-      ? ctx->Const.MaxTextureCoordUnits : ctx->Const.MaxTextureImageUnits;
+      ? ctx->Const.MaxTextureCoordUnits : ctx->Const.MaxCombinedTextureImageUnits;
    if (ctx->Texture.CurrentUnit >= maxUnit) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glTexEnvfv(current unit)");
       return;
@@ -464,7 +441,7 @@ _mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param )
          set_combiner_scale(ctx, texUnit, pname, param[0]);
         break;
       case GL_BUMP_TARGET_ATI:
-         if (!ctx->Extensions.ATI_envmap_bumpmap) {
+         if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ATI_envmap_bumpmap) {
            _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname=0x%x)", pname );
            return;
         }
@@ -489,11 +466,6 @@ _mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param )
       }
    }
    else if (target == GL_TEXTURE_FILTER_CONTROL_EXT) {
-      /* GL_EXT_texture_lod_bias */
-      if (!ctx->Extensions.EXT_texture_lod_bias) {
-        _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(target=0x%x)", target );
-        return;
-      }
       if (pname == GL_TEXTURE_LOD_BIAS_EXT) {
         if (texUnit->LodBias == param[0])
            return;
@@ -534,7 +506,8 @@ _mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param )
       }
    }
    else {
-      _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(target=0x%x)",target );
+      _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(target=%s)",
+                  _mesa_lookup_enum_by_nr(target));
       return;
    }
 
@@ -605,37 +578,17 @@ get_texenvi(struct gl_context *ctx, const struct gl_texture_unit *texUnit,
       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;
+      return texUnit->Combine.ModeRGB;
    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;
+      return texUnit->Combine.ModeA;
    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_SOURCE2_RGB: {
+      const unsigned rgb_idx = pname - GL_SOURCE0_RGB;
+      return texUnit->Combine.SourceRGB[rgb_idx];
+   }
    case GL_SOURCE3_RGB_NV:
-      if (ctx->Extensions.NV_texture_env_combine4) {
+      if (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.NV_texture_env_combine4) {
          return texUnit->Combine.SourceRGB[3];
       }
       else {
@@ -644,18 +597,12 @@ get_texenvi(struct gl_context *ctx, const struct gl_texture_unit *texUnit,
       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_SOURCE2_ALPHA: {
+      const unsigned alpha_idx = pname - GL_SOURCE0_ALPHA;
+      return texUnit->Combine.SourceA[alpha_idx];
+   }
    case GL_SOURCE3_ALPHA_NV:
-      if (ctx->Extensions.NV_texture_env_combine4) {
+      if (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.NV_texture_env_combine4) {
          return texUnit->Combine.SourceA[3];
       }
       else {
@@ -664,18 +611,12 @@ get_texenvi(struct gl_context *ctx, const struct gl_texture_unit *texUnit,
       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_OPERAND2_RGB: {
+      const unsigned op_rgb = pname - GL_OPERAND0_RGB;
+      return texUnit->Combine.OperandRGB[op_rgb];
+   }
    case GL_OPERAND3_RGB_NV:
-      if (ctx->Extensions.NV_texture_env_combine4) {
+      if (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.NV_texture_env_combine4) {
          return texUnit->Combine.OperandRGB[3];
       }
       else {
@@ -684,18 +625,12 @@ get_texenvi(struct gl_context *ctx, const struct gl_texture_unit *texUnit,
       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_OPERAND2_ALPHA: {
+      const unsigned op_alpha = pname - GL_OPERAND0_ALPHA;
+      return texUnit->Combine.OperandA[op_alpha];
+   }
    case GL_OPERAND3_ALPHA_NV:
-      if (ctx->Extensions.NV_texture_env_combine4) {
+      if (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.NV_texture_env_combine4) {
          return texUnit->Combine.OperandA[3];
       }
       else {
@@ -703,26 +638,12 @@ get_texenvi(struct gl_context *ctx, const struct gl_texture_unit *texUnit,
       }
       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;
+      return 1 << texUnit->Combine.ScaleShiftRGB;
    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;
+      return 1 << texUnit->Combine.ScaleShiftA;
    case GL_BUMP_TARGET_ATI:
       /* spec doesn't say so, but I think this should be queryable */
-      if (ctx->Extensions.ATI_envmap_bumpmap) {
+      if (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ATI_envmap_bumpmap) {
          return texUnit->BumpTarget;
       }
       else {
@@ -731,7 +652,8 @@ get_texenvi(struct gl_context *ctx, const struct gl_texture_unit *texUnit,
       break;
 
    default:
-      ;
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
+      break;
    }
 
    return -1; /* error */
@@ -745,10 +667,9 @@ _mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params )
    GLuint maxUnit;
    const struct gl_texture_unit *texUnit;
    GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    maxUnit = (target == GL_POINT_SPRITE_NV && pname == GL_COORD_REPLACE_NV)
-      ? ctx->Const.MaxTextureCoordUnits : ctx->Const.MaxTextureImageUnits;
+      ? ctx->Const.MaxTextureCoordUnits : ctx->Const.MaxCombinedTextureImageUnits;
    if (ctx->Texture.CurrentUnit >= maxUnit) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexEnvfv(current unit)");
       return;
@@ -760,7 +681,7 @@ _mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params )
       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))
             COPY_4FV( params, texUnit->EnvColor );
          else
             COPY_4FV( params, texUnit->EnvColorUnclamped );
@@ -773,11 +694,6 @@ _mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params )
       }
    }
    else if (target == GL_TEXTURE_FILTER_CONTROL_EXT) {
-      /* GL_EXT_texture_lod_bias */
-      if (!ctx->Extensions.EXT_texture_lod_bias) {
-        _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(target)" );
-        return;
-      }
       if (pname == GL_TEXTURE_LOD_BIAS_EXT) {
          *params = texUnit->LodBias;
       }
@@ -814,10 +730,9 @@ _mesa_GetTexEnviv( GLenum target, GLenum pname, GLint *params )
    GLuint maxUnit;
    const struct gl_texture_unit *texUnit;
    GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    maxUnit = (target == GL_POINT_SPRITE_NV && pname == GL_COORD_REPLACE_NV)
-      ? ctx->Const.MaxTextureCoordUnits : ctx->Const.MaxTextureImageUnits;
+      ? ctx->Const.MaxTextureCoordUnits : ctx->Const.MaxCombinedTextureImageUnits;
    if (ctx->Texture.CurrentUnit >= maxUnit) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexEnviv(current unit)");
       return;
@@ -840,11 +755,6 @@ _mesa_GetTexEnviv( GLenum target, GLenum pname, GLint *params )
       }
    }
    else if (target == GL_TEXTURE_FILTER_CONTROL_EXT) {
-      /* GL_EXT_texture_lod_bias */
-      if (!ctx->Extensions.EXT_texture_lod_bias) {
-        _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(target)" );
-        return;
-      }
       if (pname == GL_TEXTURE_LOD_BIAS_EXT) {
          *params = (GLint) texUnit->LodBias;
       }
@@ -884,7 +794,6 @@ _mesa_TexBumpParameterivATI( GLenum pname, const GLint *param )
 {
    GLfloat p[4];
    GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    if (!ctx->Extensions.ATI_envmap_bumpmap) {
       /* This isn't an "official" error case, but let's tell the user
@@ -914,7 +823,6 @@ _mesa_TexBumpParameterfvATI( GLenum pname, const GLfloat *param )
 {
    struct gl_texture_unit *texUnit;
    GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    if (!ctx->Extensions.ATI_envmap_bumpmap) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBumpParameterfvATI");
@@ -947,7 +855,6 @@ _mesa_GetTexBumpParameterivATI( GLenum pname, GLint *param )
    const struct gl_texture_unit *texUnit;
    GLuint i;
    GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    if (!ctx->Extensions.ATI_envmap_bumpmap) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexBumpParameterivATI");
@@ -999,7 +906,6 @@ _mesa_GetTexBumpParameterfvATI( GLenum pname, GLfloat *param )
    const struct gl_texture_unit *texUnit;
    GLuint i;
    GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    if (!ctx->Extensions.ATI_envmap_bumpmap) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexBumpParameterfvATI");