From b3dd524a1082efd12d4a796122c300a61ba016d9 Mon Sep 17 00:00:00 2001
From: Ian Romanick <ian.d.romanick@intel.com>
Date: Thu, 26 Jul 2012 18:04:50 -0700
Subject: [PATCH] mesa/es: Validate glTexParameter pnames in Mesa code rather
 than the ES wrapper

This also adds a missing extension (and API) check around
GL_TEXTURE_CROP_RECT_OES.

v2: Add proper core-profile, GLES1, and GLES3 filtering.  GL_TEXTURE_MAX_LEVEL
is (incorrectly) accepted in ES contexts.  A future patch will add
GL_APPLE_texture_max_level, and meta really needs this.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
---
 src/mesa/main/APIspec.xml      | 23 -------------
 src/mesa/main/es1_conversion.c | 44 ++----------------------
 src/mesa/main/texparam.c       | 62 ++++++++++++++++++++++++++++------
 3 files changed, 54 insertions(+), 75 deletions(-)

diff --git a/src/mesa/main/APIspec.xml b/src/mesa/main/APIspec.xml
index c2347e52284..af98440e037 100644
--- a/src/mesa/main/APIspec.xml
+++ b/src/mesa/main/APIspec.xml
@@ -226,29 +226,6 @@
 			<param name="param" type="GLtype"/>
 		</vector>
 	</proto>
-
-	<desc name="pname">
-		<value name="GL_TEXTURE_WRAP_S"/>
-		<value name="GL_TEXTURE_WRAP_T"/>
-		<value name="GL_TEXTURE_WRAP_R_OES" category="OES_texture_3D"/>
-		<value name="GL_TEXTURE_MIN_FILTER"/>
-		<value name="GL_TEXTURE_MAG_FILTER"/>
-		<value name="GL_TEXTURE_MAX_ANISOTROPY_EXT" category="EXT_texture_filter_anisotropic"/>
-        </desc>
-
-	<desc name="pname" category="GLES1.1">
-		<value name="GL_GENERATE_MIPMAP"/>
-
-		<desc name="param">
-			<value name="GL_TRUE"/>
-			<value name="GL_FALSE"/>
-		</desc>
-	</desc>
-
-	<desc name="pname" category="OES_draw_texture">
-		<value name="GL_TEXTURE_CROP_RECT_OES"/>
-		<desc name="params" vector_size="4"/>
-	</desc>
 </template>
 
 <template name="TexImage2D">
diff --git a/src/mesa/main/es1_conversion.c b/src/mesa/main/es1_conversion.c
index 247a038dc8d..75cdfc88711 100644
--- a/src/mesa/main/es1_conversion.c
+++ b/src/mesa/main/es1_conversion.c
@@ -1237,41 +1237,11 @@ _check_TexGenxvOES(GLenum coord, GLenum pname, const GLfixed *params)
 void GL_APIENTRY
 _es_TexParameterx(GLenum target, GLenum pname, GLfixed param)
 {
-   GLfloat converted_param;
-   bool convert_param_value = true;
-
-   switch(pname) {
-   case GL_TEXTURE_WRAP_S:
-   case GL_TEXTURE_WRAP_T:
-      convert_param_value = false;
-      break;
-   case GL_TEXTURE_MIN_FILTER:
-   case GL_TEXTURE_MAG_FILTER:
-      convert_param_value = false;
-      break;
-   case GL_GENERATE_MIPMAP:
-      if (param != GL_TRUE && param != GL_FALSE) {
-         _mesa_error(_mesa_get_current_context(), GL_INVALID_ENUM,
-                     "glTexParameterx(pname=0x%x)", pname);
-         return;
-      }
-      convert_param_value = false;
-      break;
-   case GL_TEXTURE_MAX_ANISOTROPY_EXT:
-      break;
-   default:
-      _mesa_error(_mesa_get_current_context(), GL_INVALID_ENUM,
-                  "glTexParameterx(pname=0x%x)", pname);
-      return;
-   }
-
-   if (convert_param_value) {
-      converted_param = (GLfloat) (param / 65536.0f);
+   if (pname == GL_TEXTURE_MAX_ANISOTROPY_EXT) {
+      _mesa_TexParameterf(target, pname, (GLfloat) (param / 65536.0f));
    } else {
-      converted_param = (GLfloat) param;
+      _mesa_TexParameterf(target, pname, (GLfloat) param);
    }
-
-   _mesa_TexParameterf(target, pname, converted_param);
 }
 
 void GL_APIENTRY
@@ -1300,15 +1270,7 @@ _es_TexParameterxv(GLenum target, GLenum pname, const GLfixed *params)
       break;
    case GL_TEXTURE_MIN_FILTER:
    case GL_TEXTURE_MAG_FILTER:
-      convert_params_value = false;
-      n_params = 1;
-      break;
    case GL_GENERATE_MIPMAP:
-      if (params[0] != GL_TRUE && params[0] != GL_FALSE) {
-         _mesa_error(_mesa_get_current_context(), GL_INVALID_ENUM,
-                     "glTexParameterxv(pname=0x%x)", pname);
-         return;
-      }
       convert_params_value = false;
       n_params = 1;
       break;
diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index bb16228ee2c..05d31c1cfc8 100644
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -325,6 +325,9 @@ set_tex_parameteri(struct gl_context *ctx,
       return GL_FALSE;
 
    case GL_TEXTURE_BASE_LEVEL:
+      if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
+         goto invalid_pname;
+
       if (texObj->BaseLevel == params[0])
          return GL_FALSE;
       if (params[0] < 0 ||
@@ -350,6 +353,9 @@ set_tex_parameteri(struct gl_context *ctx,
       return GL_TRUE;
 
    case GL_GENERATE_MIPMAP_SGIS:
+      if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES)
+         goto invalid_pname;
+
       if (params[0] && texObj->Target == GL_TEXTURE_EXTERNAL_OES)
          goto invalid_param;
       if (texObj->GenerateMipmap != params[0]) {
@@ -360,7 +366,8 @@ set_tex_parameteri(struct gl_context *ctx,
       return GL_FALSE;
 
    case GL_TEXTURE_COMPARE_MODE_ARB:
-      if (ctx->Extensions.ARB_shadow) {
+      if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow)
+          || _mesa_is_gles3(ctx)) {
          if (texObj->Sampler.CompareMode == params[0])
             return GL_FALSE;
          if (params[0] == GL_NONE ||
@@ -374,7 +381,8 @@ set_tex_parameteri(struct gl_context *ctx,
       goto invalid_pname;
 
    case GL_TEXTURE_COMPARE_FUNC_ARB:
-      if (ctx->Extensions.ARB_shadow) {
+      if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow)
+          || _mesa_is_gles3(ctx)) {
          if (texObj->Sampler.CompareFunc == params[0])
             return GL_FALSE;
          switch (params[0]) {
@@ -402,7 +410,10 @@ set_tex_parameteri(struct gl_context *ctx,
       goto invalid_pname;
 
    case GL_DEPTH_TEXTURE_MODE_ARB:
-      if (ctx->Extensions.ARB_depth_texture) {
+      /* GL_DEPTH_TEXTURE_MODE_ARB is removed in core-profile and it has never
+       * existed in OpenGL ES.
+       */
+      if (ctx->API == API_OPENGL && ctx->Extensions.ARB_depth_texture) {
          if (texObj->DepthMode == params[0])
             return GL_FALSE;
          if (params[0] == GL_LUMINANCE ||
@@ -419,6 +430,9 @@ set_tex_parameteri(struct gl_context *ctx,
 
 #if FEATURE_OES_draw_texture
    case GL_TEXTURE_CROP_RECT_OES:
+      if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
+         goto invalid_pname;
+
       texObj->CropRect[0] = params[0];
       texObj->CropRect[1] = params[1];
       texObj->CropRect[2] = params[2];
@@ -430,7 +444,8 @@ set_tex_parameteri(struct gl_context *ctx,
    case GL_TEXTURE_SWIZZLE_G_EXT:
    case GL_TEXTURE_SWIZZLE_B_EXT:
    case GL_TEXTURE_SWIZZLE_A_EXT:
-      if (ctx->Extensions.EXT_texture_swizzle) {
+      if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_swizzle)
+          || _mesa_is_gles3(ctx)) {
          const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
          const GLint swz = comp_to_swizzle(params[0]);
          if (swz < 0) {
@@ -448,7 +463,8 @@ set_tex_parameteri(struct gl_context *ctx,
       goto invalid_pname;
 
    case GL_TEXTURE_SWIZZLE_RGBA_EXT:
-      if (ctx->Extensions.EXT_texture_swizzle) {
+      if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_swizzle)
+          || _mesa_is_gles3(ctx)) {
          GLuint comp;
          flush(ctx);
          for (comp = 0; comp < 4; comp++) {
@@ -468,7 +484,8 @@ set_tex_parameteri(struct gl_context *ctx,
       goto invalid_pname;
 
    case GL_TEXTURE_SRGB_DECODE_EXT:
-      if (ctx->Extensions.EXT_texture_sRGB_decode) {
+      if (_mesa_is_desktop_gl(ctx)
+          && ctx->Extensions.EXT_texture_sRGB_decode) {
 	 GLenum decode = params[0];
 	 if (decode == GL_DECODE_EXT || decode == GL_SKIP_DECODE_EXT) {
 	    if (texObj->Sampler.sRGBDecode != decode) {
@@ -481,7 +498,8 @@ set_tex_parameteri(struct gl_context *ctx,
       goto invalid_pname;
 
    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
-      if (ctx->Extensions.AMD_seamless_cubemap_per_texture) {
+      if (_mesa_is_desktop_gl(ctx)
+          && ctx->Extensions.AMD_seamless_cubemap_per_texture) {
          GLenum param = params[0];
          if (param != GL_TRUE && param != GL_FALSE) {
             goto invalid_param;
@@ -521,6 +539,9 @@ set_tex_parameterf(struct gl_context *ctx,
 {
    switch (pname) {
    case GL_TEXTURE_MIN_LOD:
+      if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
+         goto invalid_pname;
+
       if (texObj->Sampler.MinLod == params[0])
          return GL_FALSE;
       flush(ctx);
@@ -528,6 +549,9 @@ set_tex_parameterf(struct gl_context *ctx,
       return GL_TRUE;
 
    case GL_TEXTURE_MAX_LOD:
+      if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
+         goto invalid_pname;
+
       if (texObj->Sampler.MaxLod == params[0])
          return GL_FALSE;
       flush(ctx);
@@ -535,6 +559,9 @@ set_tex_parameterf(struct gl_context *ctx,
       return GL_TRUE;
 
    case GL_TEXTURE_PRIORITY:
+      if (ctx->API != API_OPENGL)
+         goto invalid_pname;
+
       flush(ctx);
       texObj->Priority = CLAMP(params[0], 0.0F, 1.0F);
       return GL_TRUE;
@@ -556,13 +583,18 @@ set_tex_parameterf(struct gl_context *ctx,
       else {
          static GLuint count = 0;
          if (count++ < 10)
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)");
+            goto invalid_pname;
       }
       return GL_FALSE;
 
    case GL_TEXTURE_LOD_BIAS:
-      /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias */
+      /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias.
+       * It was removed in core-profile, and it has never existed in OpenGL
+       * ES.
+       */
+      if (ctx->API != API_OPENGL)
+         goto invalid_pname;
+
       if (texObj->Sampler.LodBias != params[0]) {
 	 flush(ctx);
 	 texObj->Sampler.LodBias = params[0];
@@ -571,6 +603,9 @@ set_tex_parameterf(struct gl_context *ctx,
       break;
 
    case GL_TEXTURE_BORDER_COLOR:
+      if (!_mesa_is_desktop_gl(ctx))
+         goto invalid_pname;
+
       flush(ctx);
       /* ARB_texture_float disables clamping */
       if (ctx->Extensions.ARB_texture_float) {
@@ -587,9 +622,14 @@ set_tex_parameterf(struct gl_context *ctx,
       return GL_TRUE;
 
    default:
-      _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
+      goto invalid_pname;
    }
    return GL_FALSE;
+
+invalid_pname:
+   _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=%s)",
+               _mesa_lookup_enum_by_nr(pname));
+   return GL_FALSE;
 }
 
 
-- 
2.30.2