Mesa: Add support for HALF_FLOAT_OES type.

This patch adds needed support for accepting HALF_FLOAT_OES as valid type
for TexImage*D and TexSubImage*D when Texture FLoat extensions are supported.

Signed-off-by: Kevin Rogovin <kevin.rogovin@intel.com>
Signed-off-by: Kalyan Kondapally <kalyan.kondapally@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>

src/mesa/main/glformats.c

@@ -291,6 +291,7 @@ _mesa_sizeof_type(GLenum type)
    case GL_DOUBLE:
       return sizeof(GLdouble);
    case GL_HALF_FLOAT_ARB:
+   case GL_HALF_FLOAT_OES:
       return sizeof(GLhalfARB);
    case GL_FIXED:
       return sizeof(GLfixed);
@@ -323,6 +324,7 @@ _mesa_sizeof_packed_type(GLenum type)
    case GL_INT:
       return sizeof(GLint);
    case GL_HALF_FLOAT_ARB:
+   case GL_HALF_FLOAT_OES:
       return sizeof(GLhalfARB);
    case GL_FLOAT:
       return sizeof(GLfloat);
@@ -439,6 +441,7 @@ _mesa_bytes_per_pixel(GLenum format, GLenum type)
    case GL_FLOAT:
       return comps * sizeof(GLfloat);
    case GL_HALF_FLOAT_ARB:
+   case GL_HALF_FLOAT_OES:
       return comps * sizeof(GLhalfARB);
    case GL_UNSIGNED_BYTE_3_3_2:
    case GL_UNSIGNED_BYTE_2_3_3_REV:
@@ -1667,6 +1670,18 @@ _mesa_error_check_format_and_type(const struct gl_context *ctx,
       }
       return GL_NO_ERROR;
 
+   case GL_HALF_FLOAT_OES:
+      switch (format) {
+      case GL_RGBA:
+      case GL_RGB:
+      case GL_LUMINANCE_ALPHA:
+      case GL_LUMINANCE:
+      case GL_ALPHA:
+         return GL_NO_ERROR;
+      default:
+         return GL_INVALID_OPERATION;
+      }
+
    default:
       ; /* fall-through */
    }
@@ -2019,7 +2034,8 @@ _mesa_es_error_check_format_and_type(GLenum format, GLenum type,
  * \return error code, or GL_NO_ERROR.
  */
 GLenum
-_mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
+_mesa_es3_error_check_format_and_type(const struct gl_context *ctx,
+                                      GLenum format, GLenum type,
                                       GLenum internalFormat)
 {
    switch (format) {
@@ -2084,11 +2100,17 @@ _mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
          case GL_RGBA16F:
          case GL_RGBA32F:
             break;
+         case GL_RGBA:
+            if (ctx->Extensions.OES_texture_float && internalFormat == format)
+               break;
          default:
             return GL_INVALID_OPERATION;
          }
          break;
 
+      case GL_HALF_FLOAT_OES:
+         if (ctx->Extensions.OES_texture_half_float && internalFormat == format)
+            break;
       default:
          return GL_INVALID_OPERATION;
       }
@@ -2193,11 +2215,19 @@ _mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
          case GL_R11F_G11F_B10F:
          case GL_RGB9_E5:
             break;
+         case GL_RGB:
+            if (ctx->Extensions.OES_texture_float && internalFormat == format)
+               break;
          default:
             return GL_INVALID_OPERATION;
          }
          break;
 
+      case GL_HALF_FLOAT_OES:
+         if (!ctx->Extensions.OES_texture_half_float || internalFormat != format)
+            return GL_INVALID_OPERATION;
+         break;
+
       case GL_UNSIGNED_INT_2_10_10_10_REV:
          switch (internalFormat) {
          case GL_RGB: /* GL_EXT_texture_type_2_10_10_10_REV */
@@ -2437,9 +2467,17 @@ _mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
    case GL_ALPHA:
    case GL_LUMINANCE:
    case GL_LUMINANCE_ALPHA:
-      if (type != GL_UNSIGNED_BYTE || format != internalFormat)
+      switch (type) {
-         return GL_INVALID_OPERATION;
+      case GL_FLOAT:
-      break;
+         if (ctx->Extensions.OES_texture_float && internalFormat == format)
+            break;
+      case GL_HALF_FLOAT_OES:
+         if (ctx->Extensions.OES_texture_half_float && internalFormat == format)
+            break;
+      default:
+         if (type != GL_UNSIGNED_BYTE || format != internalFormat)
+            return GL_INVALID_OPERATION;
+      }
    }
 
    return GL_NO_ERROR;
@@ -2563,6 +2601,7 @@ _mesa_format_from_format_and_type(GLenum format, GLenum type)
       is_signed = true;
       break;
    case GL_HALF_FLOAT:
+   case GL_HALF_FLOAT_OES:
       type_size = 2;
       is_signed = true;
       is_float = true;

src/mesa/main/glformats.h

@@ -125,7 +125,8 @@ _mesa_es_error_check_format_and_type(GLenum format, GLenum type,
                                      unsigned dimensions);
 
 extern GLenum
-_mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
+_mesa_es3_error_check_format_and_type(const struct gl_context *ctx,
+                                      GLenum format, GLenum type,
                                       GLenum internalFormat);
 
 extern uint32_t

src/mesa/main/pack.c

@@ -268,6 +268,7 @@ extract_uint_indexes(GLuint n, GLuint indexes[],
           srcType == GL_INT ||
           srcType == GL_UNSIGNED_INT_24_8_EXT ||
           srcType == GL_HALF_FLOAT_ARB ||
+          srcType == GL_HALF_FLOAT_OES ||
           srcType == GL_FLOAT ||
           srcType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
 
@@ -407,6 +408,7 @@ extract_uint_indexes(GLuint n, GLuint indexes[],
          }
          break;
       case GL_HALF_FLOAT_ARB:
+      case GL_HALF_FLOAT_OES:
          {
             GLuint i;
             const GLhalfARB *s = (const GLhalfARB *) src;
@@ -510,6 +512,7 @@ _mesa_unpack_stencil_span( struct gl_context *ctx, GLuint n,
           srcType == GL_INT ||
           srcType == GL_UNSIGNED_INT_24_8_EXT ||
           srcType == GL_HALF_FLOAT_ARB ||
+          srcType == GL_HALF_FLOAT_OES ||
           srcType == GL_FLOAT ||
           srcType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
 
@@ -700,6 +703,7 @@ _mesa_pack_stencil_span( struct gl_context *ctx, GLuint n,
       }
       break;
    case GL_HALF_FLOAT_ARB:
+   case GL_HALF_FLOAT_OES:
       {
          GLhalfARB *dst = (GLhalfARB *) dest;
          GLuint i;
@@ -917,6 +921,7 @@ _mesa_unpack_depth_span( struct gl_context *ctx, GLuint n,
          needClamp = GL_TRUE;
          break;
       case GL_HALF_FLOAT_ARB:
+      case GL_HALF_FLOAT_OES:
          {
             GLuint i;
             const GLhalfARB *src = (const GLhalfARB *) source;
@@ -1106,6 +1111,7 @@ _mesa_pack_depth_span( struct gl_context *ctx, GLuint n, GLvoid *dest,
       }
       break;
    case GL_HALF_FLOAT_ARB:
+   case GL_HALF_FLOAT_OES:
       {
          GLhalfARB *dst = (GLhalfARB *) dest;
          GLuint i;

src/mesa/main/teximage.c

@@ -2120,7 +2120,7 @@ texture_error_check( struct gl_context *ctx,
 
    if (_mesa_is_gles(ctx)) {
       if (_mesa_is_gles3(ctx)) {
-         err = _mesa_es3_error_check_format_and_type(format, type,
+         err = _mesa_es3_error_check_format_and_type(ctx, format, type,
                                                      internalFormat);
       } else {
          if (format != internalFormat) {