* 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
- * 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.
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
*/
-#include "imports.h"
+#include "context.h"
#include "glformats.h"
+#include "formats.h"
+#include "enums.h"
+enum {
+ ZERO = 4,
+ ONE = 5
+};
+
+enum {
+ IDX_LUMINANCE = 0,
+ IDX_ALPHA,
+ IDX_INTENSITY,
+ IDX_LUMINANCE_ALPHA,
+ IDX_RGB,
+ IDX_RGBA,
+ IDX_RED,
+ IDX_GREEN,
+ IDX_BLUE,
+ IDX_BGR,
+ IDX_BGRA,
+ IDX_ABGR,
+ IDX_RG,
+ MAX_IDX
+};
+
+#define MAP1(x) MAP4(x, ZERO, ZERO, ZERO)
+#define MAP2(x,y) MAP4(x, y, ZERO, ZERO)
+#define MAP3(x,y,z) MAP4(x, y, z, ZERO)
+#define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE }
+
+static const struct {
+ GLubyte format_idx;
+ GLubyte to_rgba[6];
+ GLubyte from_rgba[6];
+} mappings[MAX_IDX] =
+{
+ {
+ IDX_LUMINANCE,
+ MAP4(0,0,0,ONE),
+ MAP1(0)
+ },
+
+ {
+ IDX_ALPHA,
+ MAP4(ZERO, ZERO, ZERO, 0),
+ MAP1(3)
+ },
+
+ {
+ IDX_INTENSITY,
+ MAP4(0, 0, 0, 0),
+ MAP1(0),
+ },
+
+ {
+ IDX_LUMINANCE_ALPHA,
+ MAP4(0,0,0,1),
+ MAP2(0,3)
+ },
+
+ {
+ IDX_RGB,
+ MAP4(0,1,2,ONE),
+ MAP3(0,1,2)
+ },
+
+ {
+ IDX_RGBA,
+ MAP4(0,1,2,3),
+ MAP4(0,1,2,3),
+ },
+
+ {
+ IDX_RED,
+ MAP4(0, ZERO, ZERO, ONE),
+ MAP1(0),
+ },
+
+ {
+ IDX_GREEN,
+ MAP4(ZERO, 0, ZERO, ONE),
+ MAP1(1),
+ },
+
+ {
+ IDX_BLUE,
+ MAP4(ZERO, ZERO, 0, ONE),
+ MAP1(2),
+ },
+
+ {
+ IDX_BGR,
+ MAP4(2,1,0,ONE),
+ MAP3(2,1,0)
+ },
+
+ {
+ IDX_BGRA,
+ MAP4(2,1,0,3),
+ MAP4(2,1,0,3)
+ },
+
+ {
+ IDX_ABGR,
+ MAP4(3,2,1,0),
+ MAP4(3,2,1,0)
+ },
+
+ {
+ IDX_RG,
+ MAP4(0, 1, ZERO, ONE),
+ MAP2(0, 1)
+ },
+};
/**
- * Test if the given format is an integer (non-normalized) format.
+ * Convert a GL image format enum to an IDX_* value (see above).
*/
-GLboolean
-_mesa_is_enum_format_integer(GLenum format)
+static int
+get_map_idx(GLenum value)
{
- switch (format) {
- /* generic integer formats */
- case GL_RED_INTEGER_EXT:
- case GL_GREEN_INTEGER_EXT:
- case GL_BLUE_INTEGER_EXT:
- case GL_ALPHA_INTEGER_EXT:
- case GL_RGB_INTEGER_EXT:
- case GL_RGBA_INTEGER_EXT:
- case GL_BGR_INTEGER_EXT:
- case GL_BGRA_INTEGER_EXT:
+ switch (value) {
+ case GL_LUMINANCE:
case GL_LUMINANCE_INTEGER_EXT:
+ return IDX_LUMINANCE;
+ case GL_ALPHA:
+ case GL_ALPHA_INTEGER:
+ return IDX_ALPHA;
+ case GL_INTENSITY:
+ return IDX_INTENSITY;
+ case GL_LUMINANCE_ALPHA:
case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+ return IDX_LUMINANCE_ALPHA;
+ case GL_RGB:
+ case GL_RGB_INTEGER:
+ return IDX_RGB;
+ case GL_RGBA:
+ case GL_RGBA_INTEGER:
+ return IDX_RGBA;
+ case GL_RED:
+ case GL_RED_INTEGER:
+ return IDX_RED;
+ case GL_GREEN:
+ return IDX_GREEN;
+ case GL_BLUE:
+ return IDX_BLUE;
+ case GL_BGR:
+ case GL_BGR_INTEGER:
+ return IDX_BGR;
+ case GL_BGRA:
+ case GL_BGRA_INTEGER:
+ return IDX_BGRA;
+ case GL_ABGR_EXT:
+ return IDX_ABGR;
+ case GL_RG:
case GL_RG_INTEGER:
- /* specific integer formats */
- case GL_RGBA32UI_EXT:
- case GL_RGB32UI_EXT:
- case GL_RG32UI:
- case GL_R32UI:
- case GL_ALPHA32UI_EXT:
- case GL_INTENSITY32UI_EXT:
- case GL_LUMINANCE32UI_EXT:
- case GL_LUMINANCE_ALPHA32UI_EXT:
- case GL_RGBA16UI_EXT:
- case GL_RGB16UI_EXT:
- case GL_RG16UI:
- case GL_R16UI:
- case GL_ALPHA16UI_EXT:
- case GL_INTENSITY16UI_EXT:
- case GL_LUMINANCE16UI_EXT:
- case GL_LUMINANCE_ALPHA16UI_EXT:
- case GL_RGBA8UI_EXT:
- case GL_RGB8UI_EXT:
- case GL_RG8UI:
- case GL_R8UI:
- case GL_ALPHA8UI_EXT:
- case GL_INTENSITY8UI_EXT:
- case GL_LUMINANCE8UI_EXT:
- case GL_LUMINANCE_ALPHA8UI_EXT:
- case GL_RGBA32I_EXT:
- case GL_RGB32I_EXT:
- case GL_RG32I:
- case GL_R32I:
- case GL_ALPHA32I_EXT:
- case GL_INTENSITY32I_EXT:
- case GL_LUMINANCE32I_EXT:
- case GL_LUMINANCE_ALPHA32I_EXT:
- case GL_RGBA16I_EXT:
- case GL_RGB16I_EXT:
- case GL_RG16I:
- case GL_R16I:
- case GL_ALPHA16I_EXT:
- case GL_INTENSITY16I_EXT:
- case GL_LUMINANCE16I_EXT:
- case GL_LUMINANCE_ALPHA16I_EXT:
- case GL_RGBA8I_EXT:
- case GL_RGB8I_EXT:
- case GL_RG8I:
- case GL_R8I:
- case GL_ALPHA8I_EXT:
- case GL_INTENSITY8I_EXT:
- case GL_LUMINANCE8I_EXT:
- case GL_LUMINANCE_ALPHA8I_EXT:
- case GL_RGB10_A2UI:
- return GL_TRUE;
+ return IDX_RG;
default:
- return GL_FALSE;
+ _mesa_problem(NULL, "Unexpected inFormat %s",
+ _mesa_lookup_enum_by_nr(value));
+ return 0;
}
}
+/**
+ * When promoting texture formats (see below) we need to compute the
+ * mapping of dest components back to source components.
+ * This function does that.
+ * \param inFormat the incoming format of the texture
+ * \param outFormat the final texture format
+ * \return map[6] a full 6-component map
+ */
+void
+_mesa_compute_component_mapping(GLenum inFormat, GLenum outFormat, GLubyte *map)
+{
+ const int inFmt = get_map_idx(inFormat);
+ const int outFmt = get_map_idx(outFormat);
+ const GLubyte *in2rgba = mappings[inFmt].to_rgba;
+ const GLubyte *rgba2out = mappings[outFmt].from_rgba;
+ int i;
+
+ for (i = 0; i < 4; i++)
+ map[i] = in2rgba[rgba2out[i]];
+
+ map[ZERO] = ZERO;
+ map[ONE] = ONE;
+
+#if 0
+ printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n",
+ inFormat, _mesa_lookup_enum_by_nr(inFormat),
+ outFormat, _mesa_lookup_enum_by_nr(outFormat),
+ map[0],
+ map[1],
+ map[2],
+ map[3],
+ map[4],
+ map[5]);
+#endif
+}
/**
- * Test if the given type is an integer (non-normalized) format.
+ * \return GL_TRUE if type is packed pixel type, GL_FALSE otherwise.
*/
GLboolean
-_mesa_is_type_integer(GLenum type)
+_mesa_type_is_packed(GLenum type)
{
switch (type) {
- case GL_INT:
- case GL_UNSIGNED_INT:
- case GL_SHORT:
- case GL_UNSIGNED_SHORT:
- case GL_BYTE:
- case GL_UNSIGNED_BYTE:
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case MESA_UNSIGNED_BYTE_4_4:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ case GL_UNSIGNED_SHORT_8_8_MESA:
+ case GL_UNSIGNED_SHORT_8_8_REV_MESA:
+ case GL_UNSIGNED_INT_24_8_EXT:
+ case GL_UNSIGNED_INT_5_9_9_9_REV:
+ case GL_UNSIGNED_INT_10F_11F_11F_REV:
+ case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
return GL_TRUE;
- default:
- return GL_FALSE;
}
+
+ return GL_FALSE;
}
/**
- * Test if the given format or type is an integer (non-normalized) format.
+ * Get the size of a GL data type.
+ *
+ * \param type GL data type.
+ *
+ * \return the size, in bytes, of the given data type, 0 if a GL_BITMAP, or -1
+ * if an invalid type enum.
*/
-extern GLboolean
-_mesa_is_enum_format_or_type_integer(GLenum format, GLenum type)
+GLint
+_mesa_sizeof_type(GLenum type)
{
- return _mesa_is_enum_format_integer(format) || _mesa_is_type_integer(type);
+ switch (type) {
+ case GL_BITMAP:
+ return 0;
+ case GL_UNSIGNED_BYTE:
+ return sizeof(GLubyte);
+ case GL_BYTE:
+ return sizeof(GLbyte);
+ case GL_UNSIGNED_SHORT:
+ return sizeof(GLushort);
+ case GL_SHORT:
+ return sizeof(GLshort);
+ case GL_UNSIGNED_INT:
+ return sizeof(GLuint);
+ case GL_INT:
+ return sizeof(GLint);
+ case GL_FLOAT:
+ return sizeof(GLfloat);
+ case GL_DOUBLE:
+ return sizeof(GLdouble);
+ case GL_HALF_FLOAT_ARB:
+ return sizeof(GLhalfARB);
+ case GL_FIXED:
+ return sizeof(GLfixed);
+ default:
+ return -1;
+ }
}
-GLboolean
-_mesa_is_type_unsigned(GLenum type)
+/**
+ * Same as _mesa_sizeof_type() but also accepting the packed pixel
+ * format data types.
+ */
+GLint
+_mesa_sizeof_packed_type(GLenum type)
{
switch (type) {
- case GL_UNSIGNED_INT:
- case GL_UNSIGNED_INT_8_8_8_8:
- case GL_UNSIGNED_INT_8_8_8_8_REV:
- case GL_UNSIGNED_INT_10_10_10_2:
- case GL_UNSIGNED_INT_2_10_10_10_REV:
-
+ case GL_BITMAP:
+ return 0;
+ case GL_UNSIGNED_BYTE:
+ return sizeof(GLubyte);
+ case GL_BYTE:
+ return sizeof(GLbyte);
case GL_UNSIGNED_SHORT:
- case GL_UNSIGNED_SHORT_4_4_4_4:
- case GL_UNSIGNED_SHORT_5_5_5_1:
+ return sizeof(GLushort);
+ case GL_SHORT:
+ return sizeof(GLshort);
+ case GL_UNSIGNED_INT:
+ return sizeof(GLuint);
+ case GL_INT:
+ return sizeof(GLint);
+ case GL_HALF_FLOAT_ARB:
+ return sizeof(GLhalfARB);
+ case GL_FLOAT:
+ return sizeof(GLfloat);
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case MESA_UNSIGNED_BYTE_4_4:
+ return sizeof(GLubyte);
case GL_UNSIGNED_SHORT_5_6_5:
case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
case GL_UNSIGNED_SHORT_1_5_5_5_REV:
case GL_UNSIGNED_SHORT_8_8_MESA:
case GL_UNSIGNED_SHORT_8_8_REV_MESA:
-
- case GL_UNSIGNED_BYTE:
- case GL_UNSIGNED_BYTE_3_3_2:
- case GL_UNSIGNED_BYTE_2_3_3_REV:
- return GL_TRUE;
-
+ return sizeof(GLushort);
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ case GL_UNSIGNED_INT_24_8_EXT:
+ case GL_UNSIGNED_INT_5_9_9_9_REV:
+ case GL_UNSIGNED_INT_10F_11F_11F_REV:
+ return sizeof(GLuint);
+ case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
+ return 8;
default:
- return GL_FALSE;
+ return -1;
}
}
/**
- * Convert various base formats to the cooresponding integer format.
+ * Get the number of components in a pixel format.
+ *
+ * \param format pixel format.
+ *
+ * \return the number of components in the given format, or -1 if a bad format.
*/
-GLenum
-_mesa_base_format_to_integer_format(GLenum format)
+GLint
+_mesa_components_in_format(GLenum format)
{
- switch(format) {
+ switch (format) {
+ case GL_COLOR_INDEX:
+ case GL_STENCIL_INDEX:
+ case GL_DEPTH_COMPONENT:
case GL_RED:
- return GL_RED_INTEGER;
+ case GL_RED_INTEGER_EXT:
case GL_GREEN:
- return GL_GREEN_INTEGER;
+ case GL_GREEN_INTEGER_EXT:
case GL_BLUE:
- return GL_BLUE_INTEGER;
+ case GL_BLUE_INTEGER_EXT:
+ case GL_ALPHA:
+ case GL_ALPHA_INTEGER_EXT:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_INTEGER_EXT:
+ case GL_INTENSITY:
+ return 1;
+
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
case GL_RG:
- return GL_RG_INTEGER;
+ case GL_YCBCR_MESA:
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_RG_INTEGER:
+ return 2;
+
case GL_RGB:
- return GL_RGB_INTEGER;
- case GL_RGBA:
- return GL_RGBA_INTEGER;
case GL_BGR:
- return GL_BGR_INTEGER;
+ case GL_RGB_INTEGER_EXT:
+ case GL_BGR_INTEGER_EXT:
+ return 3;
+
+ case GL_RGBA:
case GL_BGRA:
- return GL_BGRA_INTEGER;
- case GL_ALPHA:
- return GL_ALPHA_INTEGER;
- case GL_LUMINANCE:
- return GL_LUMINANCE_INTEGER_EXT;
- case GL_LUMINANCE_ALPHA:
- return GL_LUMINANCE_ALPHA_INTEGER_EXT;
+ case GL_ABGR_EXT:
+ case GL_RGBA_INTEGER_EXT:
+ case GL_BGRA_INTEGER_EXT:
+ return 4;
+
+ default:
+ return -1;
}
+}
- return format;
+
+/**
+ * Get the bytes per pixel of pixel format type pair.
+ *
+ * \param format pixel format.
+ * \param type pixel type.
+ *
+ * \return bytes per pixel, or -1 if a bad format or type was given.
+ */
+GLint
+_mesa_bytes_per_pixel(GLenum format, GLenum type)
+{
+ GLint comps = _mesa_components_in_format(format);
+ if (comps < 0)
+ return -1;
+
+ switch (type) {
+ case GL_BITMAP:
+ return 0; /* special case */
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ return comps * sizeof(GLubyte);
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ return comps * sizeof(GLshort);
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ return comps * sizeof(GLint);
+ case GL_FLOAT:
+ return comps * sizeof(GLfloat);
+ case GL_HALF_FLOAT_ARB:
+ return comps * sizeof(GLhalfARB);
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ if (format == GL_RGB || format == GL_BGR ||
+ format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT)
+ return sizeof(GLubyte);
+ else
+ return -1; /* error */
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ if (format == GL_RGB || format == GL_BGR ||
+ format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT)
+ return sizeof(GLushort);
+ else
+ return -1; /* error */
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT ||
+ format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT)
+ return sizeof(GLushort);
+ else
+ return -1;
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ if (format == GL_RGBA || format == GL_BGRA ||
+ format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT)
+ return sizeof(GLushort);
+ else
+ return -1;
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT ||
+ format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT ||
+ format == GL_RGB)
+ return sizeof(GLuint);
+ else
+ return -1;
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ if (format == GL_RGBA || format == GL_BGRA ||
+ format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT ||
+ format == GL_RGB)
+ return sizeof(GLuint);
+ else
+ return -1;
+ case GL_UNSIGNED_SHORT_8_8_MESA:
+ case GL_UNSIGNED_SHORT_8_8_REV_MESA:
+ if (format == GL_YCBCR_MESA)
+ return sizeof(GLushort);
+ else
+ return -1;
+ case GL_UNSIGNED_INT_24_8_EXT:
+ if (format == GL_DEPTH_STENCIL_EXT)
+ return sizeof(GLuint);
+ else
+ return -1;
+ case GL_UNSIGNED_INT_5_9_9_9_REV:
+ if (format == GL_RGB)
+ return sizeof(GLuint);
+ else
+ return -1;
+ case GL_UNSIGNED_INT_10F_11F_11F_REV:
+ if (format == GL_RGB)
+ return sizeof(GLuint);
+ else
+ return -1;
+ case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
+ if (format == GL_DEPTH_STENCIL)
+ return 8;
+ else
+ return -1;
+ default:
+ return -1;
+ }
}
+
+/**
+ * Get the number of bytes for a vertex attrib with the given number of
+ * components and type.
+ *
+ * \param comps number of components.
+ * \param type data type.
+ *
+ * \return bytes per attribute, or -1 if a bad comps/type combination was given.
+ */
+GLint
+_mesa_bytes_per_vertex_attrib(GLint comps, GLenum type)
+{
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ return comps * sizeof(GLubyte);
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ return comps * sizeof(GLshort);
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ return comps * sizeof(GLint);
+ case GL_FLOAT:
+ return comps * sizeof(GLfloat);
+ case GL_HALF_FLOAT_ARB:
+ return comps * sizeof(GLhalfARB);
+ case GL_DOUBLE:
+ return comps * sizeof(GLdouble);
+ case GL_FIXED:
+ return comps * sizeof(GLfixed);
+ case GL_INT_2_10_10_10_REV:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ if (comps == 4)
+ return sizeof(GLuint);
+ else
+ return -1;
+ case GL_UNSIGNED_INT_10F_11F_11F_REV:
+ if (comps == 3)
+ return sizeof(GLuint);
+ else
+ return -1;
+ default:
+ return -1;
+ }
+}
+
+/**
+ * Test if the given format is unsized.
+ */
+GLboolean
+_mesa_is_enum_format_unsized(GLenum format)
+{
+ switch (format) {
+ case GL_RGBA:
+ case GL_BGRA:
+ case GL_ABGR_EXT:
+ case GL_RGB:
+ case GL_BGR:
+ case GL_RG:
+ case GL_RED:
+ case GL_GREEN:
+ case GL_BLUE:
+ case GL_ALPHA:
+ case GL_INTENSITY:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_ALPHA:
+
+ case GL_SRGB:
+ case GL_SRGB_ALPHA:
+ case GL_SLUMINANCE:
+ case GL_SLUMINANCE_ALPHA:
+
+ case GL_RGBA_SNORM:
+ case GL_RGB_SNORM:
+ case GL_RG_SNORM:
+ case GL_RED_SNORM:
+ case GL_ALPHA_SNORM:
+ case GL_INTENSITY_SNORM:
+ case GL_LUMINANCE_SNORM:
+ case GL_LUMINANCE_ALPHA_SNORM:
+
+ case GL_RED_INTEGER:
+ case GL_GREEN_INTEGER:
+ case GL_BLUE_INTEGER:
+ case GL_ALPHA_INTEGER:
+ case GL_RGB_INTEGER:
+ case GL_RGBA_INTEGER:
+ case GL_BGR_INTEGER:
+ case GL_BGRA_INTEGER:
+ case GL_RG_INTEGER:
+ case GL_LUMINANCE_INTEGER_EXT:
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_STENCIL:
+ case GL_STENCIL_INDEX:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+/**
+ * Test if the given format is a UNORM (unsigned-normalized) format.
+ */
+GLboolean
+_mesa_is_enum_format_unorm(GLenum format)
+{
+ switch(format) {
+ case GL_RED:
+ case GL_GREEN:
+ case GL_BLUE:
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ case 1:
+ case GL_LUMINANCE:
+ case GL_SLUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_SLUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ case GL_R8:
+ case GL_R16:
+ case GL_RG:
+ case GL_RG8:
+ case GL_RG16:
+ case 3:
+ case GL_RGB:
+ case GL_BGR:
+ case GL_SRGB:
+ case GL_R3_G3_B2:
+ case GL_RGB4:
+ case GL_RGB5:
+ case GL_RGB565:
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ case 4:
+ case GL_ABGR_EXT:
+ case GL_RGBA:
+ case GL_BGRA:
+ case GL_SRGB_ALPHA:
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+/**
+ * Test if the given format is a SNORM (signed-normalized) format.
+ */
+GLboolean
+_mesa_is_enum_format_snorm(GLenum format)
+{
+ switch (format) {
+ /* signed, normalized texture formats */
+ case GL_RED_SNORM:
+ case GL_R8_SNORM:
+ case GL_R16_SNORM:
+ case GL_RG_SNORM:
+ case GL_RG8_SNORM:
+ case GL_RG16_SNORM:
+ case GL_RGB_SNORM:
+ case GL_RGB8_SNORM:
+ case GL_RGB16_SNORM:
+ case GL_RGBA_SNORM:
+ case GL_RGBA8_SNORM:
+ case GL_RGBA16_SNORM:
+ case GL_ALPHA_SNORM:
+ case GL_ALPHA8_SNORM:
+ case GL_ALPHA16_SNORM:
+ case GL_LUMINANCE_SNORM:
+ case GL_LUMINANCE8_SNORM:
+ case GL_LUMINANCE16_SNORM:
+ case GL_LUMINANCE_ALPHA_SNORM:
+ case GL_LUMINANCE8_ALPHA8_SNORM:
+ case GL_LUMINANCE16_ALPHA16_SNORM:
+ case GL_INTENSITY_SNORM:
+ case GL_INTENSITY8_SNORM:
+ case GL_INTENSITY16_SNORM:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+/**
+ * Test if the given format is an integer (non-normalized) format.
+ */
+GLboolean
+_mesa_is_enum_format_unsigned_int(GLenum format)
+{
+ switch (format) {
+ /* specific integer formats */
+ case GL_RGBA32UI_EXT:
+ case GL_RGB32UI_EXT:
+ case GL_RG32UI:
+ case GL_R32UI:
+ case GL_ALPHA32UI_EXT:
+ case GL_INTENSITY32UI_EXT:
+ case GL_LUMINANCE32UI_EXT:
+ case GL_LUMINANCE_ALPHA32UI_EXT:
+ case GL_RGBA16UI_EXT:
+ case GL_RGB16UI_EXT:
+ case GL_RG16UI:
+ case GL_R16UI:
+ case GL_ALPHA16UI_EXT:
+ case GL_INTENSITY16UI_EXT:
+ case GL_LUMINANCE16UI_EXT:
+ case GL_LUMINANCE_ALPHA16UI_EXT:
+ case GL_RGBA8UI_EXT:
+ case GL_RGB8UI_EXT:
+ case GL_RG8UI:
+ case GL_R8UI:
+ case GL_ALPHA8UI_EXT:
+ case GL_INTENSITY8UI_EXT:
+ case GL_LUMINANCE8UI_EXT:
+ case GL_LUMINANCE_ALPHA8UI_EXT:
+ case GL_RGB10_A2UI:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given format is an integer (non-normalized) format.
+ */
+GLboolean
+_mesa_is_enum_format_signed_int(GLenum format)
+{
+ switch (format) {
+ /* generic integer formats */
+ case GL_RED_INTEGER_EXT:
+ case GL_GREEN_INTEGER_EXT:
+ case GL_BLUE_INTEGER_EXT:
+ case GL_ALPHA_INTEGER_EXT:
+ case GL_RGB_INTEGER_EXT:
+ case GL_RGBA_INTEGER_EXT:
+ case GL_BGR_INTEGER_EXT:
+ case GL_BGRA_INTEGER_EXT:
+ case GL_LUMINANCE_INTEGER_EXT:
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+ case GL_RG_INTEGER:
+ /* specific integer formats */
+ case GL_RGBA32I_EXT:
+ case GL_RGB32I_EXT:
+ case GL_RG32I:
+ case GL_R32I:
+ case GL_ALPHA32I_EXT:
+ case GL_INTENSITY32I_EXT:
+ case GL_LUMINANCE32I_EXT:
+ case GL_LUMINANCE_ALPHA32I_EXT:
+ case GL_RGBA16I_EXT:
+ case GL_RGB16I_EXT:
+ case GL_RG16I:
+ case GL_R16I:
+ case GL_ALPHA16I_EXT:
+ case GL_INTENSITY16I_EXT:
+ case GL_LUMINANCE16I_EXT:
+ case GL_LUMINANCE_ALPHA16I_EXT:
+ case GL_RGBA8I_EXT:
+ case GL_RGB8I_EXT:
+ case GL_RG8I:
+ case GL_R8I:
+ case GL_ALPHA8I_EXT:
+ case GL_INTENSITY8I_EXT:
+ case GL_LUMINANCE8I_EXT:
+ case GL_LUMINANCE_ALPHA8I_EXT:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given format is an integer (non-normalized) format.
+ */
+GLboolean
+_mesa_is_enum_format_integer(GLenum format)
+{
+ return _mesa_is_enum_format_unsigned_int(format) ||
+ _mesa_is_enum_format_signed_int(format);
+}
+
+
+GLboolean
+_mesa_is_type_unsigned(GLenum type)
+{
+ switch (type) {
+ case GL_UNSIGNED_INT:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+
+ case GL_UNSIGNED_SHORT:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_SHORT_8_8_MESA:
+ case GL_UNSIGNED_SHORT_8_8_REV_MESA:
+
+ case GL_UNSIGNED_BYTE:
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ return GL_TRUE;
+
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a color/RGBA format (i.e., not color
+ * index, depth, stencil, etc).
+ * \param format the image format value (may by an internal texture format)
+ * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
+ */
+GLboolean
+_mesa_is_color_format(GLenum format)
+{
+ switch (format) {
+ case GL_RED:
+ case GL_GREEN:
+ case GL_BLUE:
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ case GL_R8:
+ case GL_R16:
+ case GL_RG:
+ case GL_RG8:
+ case GL_RG16:
+ case 3:
+ case GL_RGB:
+ case GL_BGR:
+ case GL_R3_G3_B2:
+ case GL_RGB4:
+ case GL_RGB5:
+ case GL_RGB565:
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ case 4:
+ case GL_ABGR_EXT:
+ case GL_RGBA:
+ case GL_BGRA:
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ /* float texture formats */
+ case GL_ALPHA16F_ARB:
+ case GL_ALPHA32F_ARB:
+ case GL_LUMINANCE16F_ARB:
+ case GL_LUMINANCE32F_ARB:
+ case GL_LUMINANCE_ALPHA16F_ARB:
+ case GL_LUMINANCE_ALPHA32F_ARB:
+ case GL_INTENSITY16F_ARB:
+ case GL_INTENSITY32F_ARB:
+ case GL_R16F:
+ case GL_R32F:
+ case GL_RG16F:
+ case GL_RG32F:
+ case GL_RGB16F_ARB:
+ case GL_RGB32F_ARB:
+ case GL_RGBA16F_ARB:
+ case GL_RGBA32F_ARB:
+ /* compressed formats */
+ case GL_COMPRESSED_ALPHA:
+ case GL_COMPRESSED_LUMINANCE:
+ case GL_COMPRESSED_LUMINANCE_ALPHA:
+ case GL_COMPRESSED_INTENSITY:
+ case GL_COMPRESSED_RED:
+ case GL_COMPRESSED_RG:
+ case GL_COMPRESSED_RGB:
+ case GL_COMPRESSED_RGBA:
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ case GL_SRGB_EXT:
+ case GL_SRGB8_EXT:
+ case GL_SRGB_ALPHA_EXT:
+ case GL_SRGB8_ALPHA8_EXT:
+ case GL_SLUMINANCE_ALPHA_EXT:
+ case GL_SLUMINANCE8_ALPHA8_EXT:
+ case GL_SLUMINANCE_EXT:
+ case GL_SLUMINANCE8_EXT:
+ case GL_COMPRESSED_SRGB_EXT:
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ case GL_COMPRESSED_SLUMINANCE_EXT:
+ case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
+ case GL_COMPRESSED_RED_RGTC1:
+ case GL_COMPRESSED_SIGNED_RED_RGTC1:
+ case GL_COMPRESSED_RG_RGTC2:
+ case GL_COMPRESSED_SIGNED_RG_RGTC2:
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
+ case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
+ case GL_ETC1_RGB8_OES:
+ case GL_COMPRESSED_RGB8_ETC2:
+ case GL_COMPRESSED_SRGB8_ETC2:
+ case GL_COMPRESSED_RGBA8_ETC2_EAC:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
+ case GL_COMPRESSED_R11_EAC:
+ case GL_COMPRESSED_RG11_EAC:
+ case GL_COMPRESSED_SIGNED_R11_EAC:
+ case GL_COMPRESSED_SIGNED_RG11_EAC:
+ case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
+ case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
+ case GL_COMPRESSED_RGBA_BPTC_UNORM:
+ case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
+ case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
+ case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
+ /* generic integer formats */
+ case GL_RED_INTEGER_EXT:
+ case GL_GREEN_INTEGER_EXT:
+ case GL_BLUE_INTEGER_EXT:
+ case GL_ALPHA_INTEGER_EXT:
+ case GL_RGB_INTEGER_EXT:
+ case GL_RGBA_INTEGER_EXT:
+ case GL_BGR_INTEGER_EXT:
+ case GL_BGRA_INTEGER_EXT:
+ case GL_RG_INTEGER:
+ case GL_LUMINANCE_INTEGER_EXT:
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+ /* sized integer formats */
+ case GL_RGBA32UI_EXT:
+ case GL_RGB32UI_EXT:
+ case GL_RG32UI:
+ case GL_R32UI:
+ case GL_ALPHA32UI_EXT:
+ case GL_INTENSITY32UI_EXT:
+ case GL_LUMINANCE32UI_EXT:
+ case GL_LUMINANCE_ALPHA32UI_EXT:
+ case GL_RGBA16UI_EXT:
+ case GL_RGB16UI_EXT:
+ case GL_RG16UI:
+ case GL_R16UI:
+ case GL_ALPHA16UI_EXT:
+ case GL_INTENSITY16UI_EXT:
+ case GL_LUMINANCE16UI_EXT:
+ case GL_LUMINANCE_ALPHA16UI_EXT:
+ case GL_RGBA8UI_EXT:
+ case GL_RGB8UI_EXT:
+ case GL_RG8UI:
+ case GL_R8UI:
+ case GL_ALPHA8UI_EXT:
+ case GL_INTENSITY8UI_EXT:
+ case GL_LUMINANCE8UI_EXT:
+ case GL_LUMINANCE_ALPHA8UI_EXT:
+ case GL_RGBA32I_EXT:
+ case GL_RGB32I_EXT:
+ case GL_RG32I:
+ case GL_R32I:
+ case GL_ALPHA32I_EXT:
+ case GL_INTENSITY32I_EXT:
+ case GL_LUMINANCE32I_EXT:
+ case GL_LUMINANCE_ALPHA32I_EXT:
+ case GL_RGBA16I_EXT:
+ case GL_RGB16I_EXT:
+ case GL_RG16I:
+ case GL_R16I:
+ case GL_ALPHA16I_EXT:
+ case GL_INTENSITY16I_EXT:
+ case GL_LUMINANCE16I_EXT:
+ case GL_LUMINANCE_ALPHA16I_EXT:
+ case GL_RGBA8I_EXT:
+ case GL_RGB8I_EXT:
+ case GL_RG8I:
+ case GL_R8I:
+ case GL_ALPHA8I_EXT:
+ case GL_INTENSITY8I_EXT:
+ case GL_LUMINANCE8I_EXT:
+ case GL_LUMINANCE_ALPHA8I_EXT:
+ /* signed, normalized texture formats */
+ case GL_RED_SNORM:
+ case GL_R8_SNORM:
+ case GL_R16_SNORM:
+ case GL_RG_SNORM:
+ case GL_RG8_SNORM:
+ case GL_RG16_SNORM:
+ case GL_RGB_SNORM:
+ case GL_RGB8_SNORM:
+ case GL_RGB16_SNORM:
+ case GL_RGBA_SNORM:
+ case GL_RGBA8_SNORM:
+ case GL_RGBA16_SNORM:
+ case GL_ALPHA_SNORM:
+ case GL_ALPHA8_SNORM:
+ case GL_ALPHA16_SNORM:
+ case GL_LUMINANCE_SNORM:
+ case GL_LUMINANCE8_SNORM:
+ case GL_LUMINANCE16_SNORM:
+ case GL_LUMINANCE_ALPHA_SNORM:
+ case GL_LUMINANCE8_ALPHA8_SNORM:
+ case GL_LUMINANCE16_ALPHA16_SNORM:
+ case GL_INTENSITY_SNORM:
+ case GL_INTENSITY8_SNORM:
+ case GL_INTENSITY16_SNORM:
+ case GL_RGB9_E5:
+ case GL_R11F_G11F_B10F:
+ case GL_RGB10_A2UI:
+ return GL_TRUE;
+ case GL_YCBCR_MESA: /* not considered to be RGB */
+ /* fall-through */
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a depth component format.
+ */
+GLboolean
+_mesa_is_depth_format(GLenum format)
+{
+ switch (format) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ case GL_DEPTH_COMPONENT32F:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a stencil format.
+ */
+GLboolean
+_mesa_is_stencil_format(GLenum format)
+{
+ switch (format) {
+ case GL_STENCIL_INDEX:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a YCbCr format.
+ */
+GLboolean
+_mesa_is_ycbcr_format(GLenum format)
+{
+ switch (format) {
+ case GL_YCBCR_MESA:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a depth+stencil format.
+ */
+GLboolean
+_mesa_is_depthstencil_format(GLenum format)
+{
+ switch (format) {
+ case GL_DEPTH24_STENCIL8_EXT:
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH32F_STENCIL8:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a depth or stencil format.
+ */
+GLboolean
+_mesa_is_depth_or_stencil_format(GLenum format)
+{
+ switch (format) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ case GL_STENCIL_INDEX:
+ case GL_STENCIL_INDEX1_EXT:
+ case GL_STENCIL_INDEX4_EXT:
+ case GL_STENCIL_INDEX8_EXT:
+ case GL_STENCIL_INDEX16_EXT:
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ case GL_DEPTH_COMPONENT32F:
+ case GL_DEPTH32F_STENCIL8:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if an image format is a supported compressed format.
+ * \param format the internal format token provided by the user.
+ * \return GL_TRUE if compressed, GL_FALSE if uncompressed
+ */
+GLboolean
+_mesa_is_compressed_format(struct gl_context *ctx, GLenum format)
+{
+ switch (format) {
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ /* Assume that the ANGLE flag will always be set if the EXT flag is set.
+ */
+ return ctx->Extensions.ANGLE_texture_compression_dxt;
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ return _mesa_is_desktop_gl(ctx) &&
+ ctx->Extensions.ANGLE_texture_compression_dxt;
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ return _mesa_is_desktop_gl(ctx)
+ && ctx->Extensions.EXT_texture_sRGB
+ && ctx->Extensions.EXT_texture_compression_s3tc;
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ return _mesa_is_desktop_gl(ctx)
+ && ctx->Extensions.TDFX_texture_compression_FXT1;
+ case GL_COMPRESSED_RED_RGTC1:
+ case GL_COMPRESSED_SIGNED_RED_RGTC1:
+ case GL_COMPRESSED_RG_RGTC2:
+ case GL_COMPRESSED_SIGNED_RG_RGTC2:
+ return _mesa_is_desktop_gl(ctx)
+ && ctx->Extensions.ARB_texture_compression_rgtc;
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
+ return ctx->API == API_OPENGL_COMPAT
+ && ctx->Extensions.EXT_texture_compression_latc;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
+ return ctx->API == API_OPENGL_COMPAT
+ && ctx->Extensions.ATI_texture_compression_3dc;
+ case GL_ETC1_RGB8_OES:
+ return _mesa_is_gles(ctx)
+ && ctx->Extensions.OES_compressed_ETC1_RGB8_texture;
+ case GL_COMPRESSED_RGB8_ETC2:
+ case GL_COMPRESSED_SRGB8_ETC2:
+ case GL_COMPRESSED_RGBA8_ETC2_EAC:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
+ case GL_COMPRESSED_R11_EAC:
+ case GL_COMPRESSED_RG11_EAC:
+ case GL_COMPRESSED_SIGNED_R11_EAC:
+ case GL_COMPRESSED_SIGNED_RG11_EAC:
+ case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
+ case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
+ return _mesa_is_gles3(ctx) || ctx->Extensions.ARB_ES3_compatibility;
+ case GL_COMPRESSED_RGBA_BPTC_UNORM:
+ case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
+ case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
+ case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
+ return _mesa_is_desktop_gl(ctx) &&
+ ctx->Extensions.ARB_texture_compression_bptc;
+ case GL_PALETTE4_RGB8_OES:
+ case GL_PALETTE4_RGBA8_OES:
+ case GL_PALETTE4_R5_G6_B5_OES:
+ case GL_PALETTE4_RGBA4_OES:
+ case GL_PALETTE4_RGB5_A1_OES:
+ case GL_PALETTE8_RGB8_OES:
+ case GL_PALETTE8_RGBA8_OES:
+ case GL_PALETTE8_R5_G6_B5_OES:
+ case GL_PALETTE8_RGBA4_OES:
+ case GL_PALETTE8_RGB5_A1_OES:
+ return ctx->API == API_OPENGLES;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Convert various base formats to the cooresponding integer format.
+ */
+GLenum
+_mesa_base_format_to_integer_format(GLenum format)
+{
+ switch(format) {
+ case GL_RED:
+ return GL_RED_INTEGER;
+ case GL_GREEN:
+ return GL_GREEN_INTEGER;
+ case GL_BLUE:
+ return GL_BLUE_INTEGER;
+ case GL_RG:
+ return GL_RG_INTEGER;
+ case GL_RGB:
+ return GL_RGB_INTEGER;
+ case GL_RGBA:
+ return GL_RGBA_INTEGER;
+ case GL_BGR:
+ return GL_BGR_INTEGER;
+ case GL_BGRA:
+ return GL_BGRA_INTEGER;
+ case GL_ALPHA:
+ return GL_ALPHA_INTEGER;
+ case GL_LUMINANCE:
+ return GL_LUMINANCE_INTEGER_EXT;
+ case GL_LUMINANCE_ALPHA:
+ return GL_LUMINANCE_ALPHA_INTEGER_EXT;
+ }
+
+ return format;
+}
+
+
+/**
+ * Does the given base texture/renderbuffer format have the channel
+ * named by 'pname'?
+ */
+GLboolean
+_mesa_base_format_has_channel(GLenum base_format, GLenum pname)
+{
+ switch (pname) {
+ case GL_TEXTURE_RED_SIZE:
+ case GL_TEXTURE_RED_TYPE:
+ case GL_RENDERBUFFER_RED_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
+ if (base_format == GL_RED ||
+ base_format == GL_RG ||
+ base_format == GL_RGB ||
+ base_format == GL_RGBA) {
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+ case GL_TEXTURE_GREEN_SIZE:
+ case GL_TEXTURE_GREEN_TYPE:
+ case GL_RENDERBUFFER_GREEN_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
+ if (base_format == GL_RG ||
+ base_format == GL_RGB ||
+ base_format == GL_RGBA) {
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+ case GL_TEXTURE_BLUE_SIZE:
+ case GL_TEXTURE_BLUE_TYPE:
+ case GL_RENDERBUFFER_BLUE_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
+ if (base_format == GL_RGB ||
+ base_format == GL_RGBA) {
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+ case GL_TEXTURE_ALPHA_SIZE:
+ case GL_TEXTURE_ALPHA_TYPE:
+ case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
+ if (base_format == GL_RGBA ||
+ base_format == GL_ALPHA ||
+ base_format == GL_LUMINANCE_ALPHA) {
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+ case GL_TEXTURE_LUMINANCE_SIZE:
+ case GL_TEXTURE_LUMINANCE_TYPE:
+ if (base_format == GL_LUMINANCE ||
+ base_format == GL_LUMINANCE_ALPHA) {
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+ case GL_TEXTURE_INTENSITY_SIZE:
+ case GL_TEXTURE_INTENSITY_TYPE:
+ if (base_format == GL_INTENSITY) {
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+ case GL_TEXTURE_DEPTH_SIZE:
+ case GL_TEXTURE_DEPTH_TYPE:
+ case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
+ if (base_format == GL_DEPTH_STENCIL ||
+ base_format == GL_DEPTH_COMPONENT) {
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+ case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
+ if (base_format == GL_DEPTH_STENCIL ||
+ base_format == GL_STENCIL_INDEX) {
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+ default:
+ _mesa_warning(NULL, "%s: Unexpected channel token 0x%x\n",
+ __FUNCTION__, pname);
+ return GL_FALSE;
+ }
+
+ return GL_FALSE;
+}
+
+
+/**
+ * Returns the number of channels/components for a base format.
+ */
+GLint
+_mesa_base_format_component_count(GLenum base_format)
+{
+ switch (base_format) {
+ case GL_RED:
+ case GL_ALPHA:
+ case GL_INTENSITY:
+ case GL_DEPTH_COMPONENT:
+ return 1;
+ case GL_RG:
+ case GL_LUMINANCE_ALPHA:
+ case GL_DEPTH_STENCIL:
+ return 2;
+ case GL_RGB:
+ return 3;
+ case GL_RGBA:
+ return 4;
+ default:
+ return -1;
+ }
+}
+
+
+/**
+ * If format is a generic compressed format, return the corresponding
+ * non-compressed format. For other formats, return the format as-is.
+ */
+GLenum
+_mesa_generic_compressed_format_to_uncompressed_format(GLenum format)
+{
+ switch (format) {
+ case GL_COMPRESSED_RED:
+ return GL_RED;
+ case GL_COMPRESSED_RG:
+ return GL_RG;
+ case GL_COMPRESSED_RGB:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA:
+ return GL_RGBA;
+ case GL_COMPRESSED_ALPHA:
+ return GL_ALPHA;
+ case GL_COMPRESSED_LUMINANCE:
+ return GL_LUMINANCE;
+ case GL_COMPRESSED_LUMINANCE_ALPHA:
+ return GL_LUMINANCE_ALPHA;
+ case GL_COMPRESSED_INTENSITY:
+ return GL_INTENSITY;
+ /* sRGB formats */
+ case GL_COMPRESSED_SRGB:
+ return GL_SRGB;
+ case GL_COMPRESSED_SRGB_ALPHA:
+ return GL_SRGB_ALPHA;
+ case GL_COMPRESSED_SLUMINANCE:
+ return GL_SLUMINANCE;
+ case GL_COMPRESSED_SLUMINANCE_ALPHA:
+ return GL_SLUMINANCE_ALPHA;
+ default:
+ return format;
+ }
+}
+
+
+/**
+ * Return the equivalent non-generic internal format.
+ * This is useful for comparing whether two internal formats are equivalent.
+ */
+GLenum
+_mesa_get_nongeneric_internalformat(GLenum format)
+{
+ switch (format) {
+ /* GL 1.1 formats. */
+ case 4:
+ case GL_RGBA:
+ return GL_RGBA8;
+ case 3:
+ case GL_RGB:
+ return GL_RGB8;
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ return GL_LUMINANCE8_ALPHA8;
+ case 1:
+ case GL_LUMINANCE:
+ return GL_LUMINANCE8;
+ case GL_ALPHA:
+ return GL_ALPHA8;
+ case GL_INTENSITY:
+ return GL_INTENSITY8;
+
+ /* GL_ARB_texture_rg */
+ case GL_RED:
+ return GL_R8;
+ case GL_RG:
+ return GL_RG8;
+
+ /* GL_EXT_texture_sRGB */
+ case GL_SRGB:
+ return GL_SRGB8;
+ case GL_SRGB_ALPHA:
+ return GL_SRGB8_ALPHA8;
+ case GL_SLUMINANCE:
+ return GL_SLUMINANCE8;
+ case GL_SLUMINANCE_ALPHA:
+ return GL_SLUMINANCE8_ALPHA8;
+
+ /* GL_EXT_texture_snorm */
+ case GL_RGBA_SNORM:
+ return GL_RGBA8_SNORM;
+ case GL_RGB_SNORM:
+ return GL_RGB8_SNORM;
+ case GL_RG_SNORM:
+ return GL_RG8_SNORM;
+ case GL_RED_SNORM:
+ return GL_R8_SNORM;
+ case GL_LUMINANCE_ALPHA_SNORM:
+ return GL_LUMINANCE8_ALPHA8_SNORM;
+ case GL_LUMINANCE_SNORM:
+ return GL_LUMINANCE8_SNORM;
+ case GL_ALPHA_SNORM:
+ return GL_ALPHA8_SNORM;
+ case GL_INTENSITY_SNORM:
+ return GL_INTENSITY8_SNORM;
+
+ default:
+ return format;
+ }
+}
+
+
+/**
+ * Convert an sRGB internal format to linear.
+ */
+GLenum
+_mesa_get_linear_internalformat(GLenum format)
+{
+ switch (format) {
+ case GL_SRGB:
+ return GL_RGB;
+ case GL_SRGB_ALPHA:
+ return GL_RGBA;
+ case GL_SRGB8:
+ return GL_RGB8;
+ case GL_SRGB8_ALPHA8:
+ return GL_RGBA8;
+ case GL_SLUMINANCE8:
+ return GL_LUMINANCE8;
+ case GL_SLUMINANCE:
+ return GL_LUMINANCE;
+ case GL_SLUMINANCE_ALPHA:
+ return GL_LUMINANCE_ALPHA;
+ case GL_SLUMINANCE8_ALPHA8:
+ return GL_LUMINANCE8_ALPHA8;
+ default:
+ return format;
+ }
+}
+
+
+/**
+ * Do error checking of format/type combinations for glReadPixels,
+ * glDrawPixels and glTex[Sub]Image. Note that depending on the format
+ * and type values, we may either generate GL_INVALID_OPERATION or
+ * GL_INVALID_ENUM.
+ *
+ * \param format pixel format.
+ * \param type pixel type.
+ *
+ * \return GL_INVALID_ENUM, GL_INVALID_OPERATION or GL_NO_ERROR
+ */
+GLenum
+_mesa_error_check_format_and_type(const struct gl_context *ctx,
+ GLenum format, GLenum type)
+{
+ /* From OpenGL 3.3 spec, page 220:
+ * "If the format is DEPTH_STENCIL, then values are taken from
+ * both the depth buffer and the stencil buffer. If there is no
+ * depth buffer or if there is no stencil buffer, then the error
+ * INVALID_OPERATION occurs. If the type parameter is not
+ * UNSIGNED_INT_24_8 or FLOAT_32_UNSIGNED_INT_24_8_REV, then the
+ * error INVALID_ENUM occurs."
+ *
+ * OpenGL ES still generates GL_INVALID_OPERATION because glReadPixels
+ * cannot be used to read depth or stencil in that API.
+ */
+ if (_mesa_is_desktop_gl(ctx) && format == GL_DEPTH_STENCIL
+ && type != GL_UNSIGNED_INT_24_8
+ && type != GL_FLOAT_32_UNSIGNED_INT_24_8_REV)
+ return GL_INVALID_ENUM;
+
+ /* special type-based checks (see glReadPixels, glDrawPixels error lists) */
+ switch (type) {
+ case GL_BITMAP:
+ if (format != GL_COLOR_INDEX && format != GL_STENCIL_INDEX) {
+ return GL_INVALID_ENUM;
+ }
+ break;
+
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ if (format == GL_RGB) {
+ break; /* OK */
+ }
+ if (format == GL_RGB_INTEGER_EXT &&
+ ctx->Extensions.ARB_texture_rgb10_a2ui) {
+ break; /* OK */
+ }
+ return GL_INVALID_OPERATION;
+
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ if (format == GL_RGBA ||
+ format == GL_BGRA ||
+ format == GL_ABGR_EXT) {
+ break; /* OK */
+ }
+ if ((format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT) &&
+ ctx->Extensions.ARB_texture_rgb10_a2ui) {
+ break; /* OK */
+ }
+ return GL_INVALID_OPERATION;
+
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ if (format == GL_RGBA ||
+ format == GL_BGRA) {
+ break; /* OK */
+ }
+ if ((format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT) &&
+ ctx->Extensions.ARB_texture_rgb10_a2ui) {
+ break; /* OK */
+ }
+ if (type == GL_UNSIGNED_INT_2_10_10_10_REV && format == GL_RGB &&
+ ctx->API == API_OPENGLES2) {
+ break; /* OK by GL_EXT_texture_type_2_10_10_10_REV */
+ }
+ return GL_INVALID_OPERATION;
+
+ case GL_UNSIGNED_INT_24_8:
+ if (format != GL_DEPTH_STENCIL) {
+ return GL_INVALID_OPERATION;
+ }
+ return GL_NO_ERROR;
+
+ case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
+ if (!ctx->Extensions.ARB_depth_buffer_float) {
+ return GL_INVALID_ENUM;
+ }
+ if (format != GL_DEPTH_STENCIL) {
+ return GL_INVALID_OPERATION;
+ }
+ return GL_NO_ERROR;
+
+ case GL_UNSIGNED_INT_10F_11F_11F_REV:
+ if (!ctx->Extensions.EXT_packed_float) {
+ return GL_INVALID_ENUM;
+ }
+ if (format != GL_RGB) {
+ return GL_INVALID_OPERATION;
+ }
+ return GL_NO_ERROR;
+
+ default:
+ ; /* fall-through */
+ }
+
+ /* now, for each format, check the type for compatibility */
+ switch (format) {
+ case GL_COLOR_INDEX:
+ case GL_STENCIL_INDEX:
+ switch (type) {
+ case GL_BITMAP:
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ case GL_HALF_FLOAT:
+ return GL_NO_ERROR;
+ default:
+ return GL_INVALID_ENUM;
+ }
+
+ case GL_RED:
+ case GL_GREEN:
+ case GL_BLUE:
+ case GL_ALPHA:
+#if 0 /* not legal! see table 3.6 of the 1.5 spec */
+ case GL_INTENSITY:
+#endif
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_ALPHA:
+ case GL_DEPTH_COMPONENT:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ case GL_HALF_FLOAT:
+ return GL_NO_ERROR;
+ default:
+ return GL_INVALID_ENUM;
+ }
+
+ case GL_RG:
+ if (!ctx->Extensions.ARB_texture_rg)
+ return GL_INVALID_ENUM;
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ case GL_HALF_FLOAT:
+ return GL_NO_ERROR;
+ default:
+ return GL_INVALID_ENUM;
+ }
+
+ case GL_RGB:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_HALF_FLOAT:
+ return GL_NO_ERROR;
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ /* OK by GL_EXT_texture_type_2_10_10_10_REV */
+ return (ctx->API == API_OPENGLES2)
+ ? GL_NO_ERROR : GL_INVALID_ENUM;
+ case GL_UNSIGNED_INT_5_9_9_9_REV:
+ return ctx->Extensions.EXT_texture_shared_exponent
+ ? GL_NO_ERROR : GL_INVALID_ENUM;
+ case GL_UNSIGNED_INT_10F_11F_11F_REV:
+ return ctx->Extensions.EXT_packed_float
+ ? GL_NO_ERROR : GL_INVALID_ENUM;
+ default:
+ return GL_INVALID_ENUM;
+ }
+
+ case GL_BGR:
+ switch (type) {
+ /* NOTE: no packed types are supported with BGR. That's
+ * intentional, according to the GL spec.
+ */
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ case GL_HALF_FLOAT:
+ return GL_NO_ERROR;
+ default:
+ return GL_INVALID_ENUM;
+ }
+
+ case GL_RGBA:
+ case GL_BGRA:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ case GL_HALF_FLOAT:
+ return GL_NO_ERROR;
+ default:
+ return GL_INVALID_ENUM;
+ }
+
+ case GL_ABGR_EXT:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_HALF_FLOAT:
+ return GL_NO_ERROR;
+ default:
+ return GL_INVALID_ENUM;
+ }
+
+ case GL_YCBCR_MESA:
+ if (!ctx->Extensions.MESA_ycbcr_texture)
+ return GL_INVALID_ENUM;
+ if (type == GL_UNSIGNED_SHORT_8_8_MESA ||
+ type == GL_UNSIGNED_SHORT_8_8_REV_MESA)
+ return GL_NO_ERROR;
+ else
+ return GL_INVALID_OPERATION;
+
+ case GL_DEPTH_STENCIL:
+ if (type == GL_UNSIGNED_INT_24_8)
+ return GL_NO_ERROR;
+ else if (ctx->Extensions.ARB_depth_buffer_float &&
+ type == GL_FLOAT_32_UNSIGNED_INT_24_8_REV)
+ return GL_NO_ERROR;
+ else
+ return GL_INVALID_ENUM;
+
+ /* integer-valued formats */
+ case GL_RED_INTEGER_EXT:
+ case GL_GREEN_INTEGER_EXT:
+ case GL_BLUE_INTEGER_EXT:
+ case GL_ALPHA_INTEGER_EXT:
+ case GL_RG_INTEGER:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ return (ctx->Version >= 30 ||
+ ctx->Extensions.EXT_texture_integer)
+ ? GL_NO_ERROR : GL_INVALID_ENUM;
+ default:
+ return GL_INVALID_ENUM;
+ }
+
+ case GL_RGB_INTEGER_EXT:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ return (ctx->Version >= 30 ||
+ ctx->Extensions.EXT_texture_integer)
+ ? GL_NO_ERROR : GL_INVALID_ENUM;
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ return ctx->Extensions.ARB_texture_rgb10_a2ui
+ ? GL_NO_ERROR : GL_INVALID_ENUM;
+ default:
+ return GL_INVALID_ENUM;
+ }
+
+ case GL_BGR_INTEGER_EXT:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ /* NOTE: no packed formats w/ BGR format */
+ return (ctx->Version >= 30 ||
+ ctx->Extensions.EXT_texture_integer)
+ ? GL_NO_ERROR : GL_INVALID_ENUM;
+ default:
+ return GL_INVALID_ENUM;
+ }
+
+ case GL_RGBA_INTEGER_EXT:
+ case GL_BGRA_INTEGER_EXT:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ return (ctx->Version >= 30 ||
+ ctx->Extensions.EXT_texture_integer)
+ ? GL_NO_ERROR : GL_INVALID_ENUM;
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ return ctx->Extensions.ARB_texture_rgb10_a2ui
+ ? GL_NO_ERROR : GL_INVALID_ENUM;
+ default:
+ return GL_INVALID_ENUM;
+ }
+
+ case GL_LUMINANCE_INTEGER_EXT:
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ return ctx->Extensions.EXT_texture_integer
+ ? GL_NO_ERROR : GL_INVALID_ENUM;
+ default:
+ return GL_INVALID_ENUM;
+ }
+
+ default:
+ return GL_INVALID_ENUM;
+ }
+ return GL_NO_ERROR;
+}
+
+
+/**
+ * Do error checking of format/type combinations for OpenGL ES glReadPixels
+ * and glTex[Sub]Image.
+ * \return error code, or GL_NO_ERROR.
+ */
+GLenum
+_mesa_es_error_check_format_and_type(GLenum format, GLenum type,
+ unsigned dimensions)
+{
+ GLboolean type_valid = GL_TRUE;
+
+ switch (format) {
+ case GL_ALPHA:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_ALPHA:
+ type_valid = (type == GL_UNSIGNED_BYTE
+ || type == GL_FLOAT
+ || type == GL_HALF_FLOAT_OES);
+ break;
+
+ case GL_RGB:
+ type_valid = (type == GL_UNSIGNED_BYTE
+ || type == GL_UNSIGNED_SHORT_5_6_5
+ || type == GL_FLOAT
+ || type == GL_HALF_FLOAT_OES);
+ break;
+
+ case GL_RGBA:
+ type_valid = (type == GL_UNSIGNED_BYTE
+ || type == GL_UNSIGNED_SHORT_4_4_4_4
+ || type == GL_UNSIGNED_SHORT_5_5_5_1
+ || type == GL_FLOAT
+ || type == GL_HALF_FLOAT_OES
+ || type == GL_UNSIGNED_INT_2_10_10_10_REV);
+ break;
+
+ case GL_DEPTH_COMPONENT:
+ /* This format is filtered against invalid dimensionalities elsewhere.
+ */
+ type_valid = (type == GL_UNSIGNED_SHORT
+ || type == GL_UNSIGNED_INT);
+ break;
+
+ case GL_DEPTH_STENCIL:
+ /* This format is filtered against invalid dimensionalities elsewhere.
+ */
+ type_valid = (type == GL_UNSIGNED_INT_24_8);
+ break;
+
+ case GL_BGRA_EXT:
+ type_valid = (type == GL_UNSIGNED_BYTE);
+
+ /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but
+ * the format does not appear to be allowed for 3D textures in OpenGL
+ * ES.
+ */
+ if (dimensions != 2)
+ return GL_INVALID_VALUE;
+
+ break;
+
+ default:
+ return GL_INVALID_VALUE;
+ }
+
+ return type_valid ? GL_NO_ERROR : GL_INVALID_OPERATION;
+}
+
+
+/**
+ * Do error checking of format/type combinations for OpenGL ES 3
+ * glTex[Sub]Image.
+ * \return error code, or GL_NO_ERROR.
+ */
+GLenum
+_mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
+ GLenum internalFormat)
+{
+ switch (format) {
+ case GL_RGBA:
+ switch (type) {
+ case GL_UNSIGNED_BYTE:
+ switch (internalFormat) {
+ case GL_RGBA:
+ case GL_RGBA8:
+ case GL_RGB5_A1:
+ case GL_RGBA4:
+ case GL_SRGB8_ALPHA8_EXT:
+ break;
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_BYTE:
+ if (internalFormat != GL_RGBA8_SNORM)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ switch (internalFormat) {
+ case GL_RGBA:
+ case GL_RGBA4:
+ break;
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ switch (internalFormat) {
+ case GL_RGBA:
+ case GL_RGB5_A1:
+ break;
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ switch (internalFormat) {
+ case GL_RGBA: /* GL_EXT_texture_type_2_10_10_10_REV */
+ case GL_RGB10_A2:
+ case GL_RGB5_A1:
+ break;
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_HALF_FLOAT:
+ if (internalFormat != GL_RGBA16F)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_FLOAT:
+ switch (internalFormat) {
+ case GL_RGBA16F:
+ case GL_RGBA32F:
+ break;
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_RGBA_INTEGER:
+ switch (type) {
+ case GL_UNSIGNED_BYTE:
+ if (internalFormat != GL_RGBA8UI)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_BYTE:
+ if (internalFormat != GL_RGBA8I)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_UNSIGNED_SHORT:
+ if (internalFormat != GL_RGBA16UI)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_SHORT:
+ if (internalFormat != GL_RGBA16I)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_UNSIGNED_INT:
+ if (internalFormat != GL_RGBA32UI)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_INT:
+ if (internalFormat != GL_RGBA32I)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ if (internalFormat != GL_RGB10_A2UI)
+ return GL_INVALID_OPERATION;
+ break;
+
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_RGB:
+ switch (type) {
+ case GL_UNSIGNED_BYTE:
+ switch (internalFormat) {
+ case GL_RGB:
+ case GL_RGB8:
+ case GL_RGB565:
+ case GL_SRGB8:
+ break;
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_BYTE:
+ if (internalFormat != GL_RGB8_SNORM)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_UNSIGNED_SHORT_5_6_5:
+ switch (internalFormat) {
+ case GL_RGB:
+ case GL_RGB565:
+ break;
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_UNSIGNED_INT_10F_11F_11F_REV:
+ if (internalFormat != GL_R11F_G11F_B10F)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_UNSIGNED_INT_5_9_9_9_REV:
+ if (internalFormat != GL_RGB9_E5)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_HALF_FLOAT:
+ switch (internalFormat) {
+ case GL_RGB16F:
+ case GL_R11F_G11F_B10F:
+ case GL_RGB9_E5:
+ break;
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_FLOAT:
+ switch (internalFormat) {
+ case GL_RGB16F:
+ case GL_RGB32F:
+ case GL_R11F_G11F_B10F:
+ case GL_RGB9_E5:
+ break;
+ default:
+ 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 */
+ break;
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_RGB_INTEGER:
+ switch (type) {
+ case GL_UNSIGNED_BYTE:
+ if (internalFormat != GL_RGB8UI)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_BYTE:
+ if (internalFormat != GL_RGB8I)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_UNSIGNED_SHORT:
+ if (internalFormat != GL_RGB16UI)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_SHORT:
+ if (internalFormat != GL_RGB16I)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_UNSIGNED_INT:
+ if (internalFormat != GL_RGB32UI)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_INT:
+ if (internalFormat != GL_RGB32I)
+ return GL_INVALID_OPERATION;
+ break;
+
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_RG:
+ switch (type) {
+ case GL_UNSIGNED_BYTE:
+ if (internalFormat != GL_RG8)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_BYTE:
+ if (internalFormat != GL_RG8_SNORM)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_HALF_FLOAT:
+ if (internalFormat != GL_RG16F)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_FLOAT:
+ switch (internalFormat) {
+ case GL_RG16F:
+ case GL_RG32F:
+ break;
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_RG_INTEGER:
+ switch (type) {
+ case GL_UNSIGNED_BYTE:
+ if (internalFormat != GL_RG8UI)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_BYTE:
+ if (internalFormat != GL_RG8I)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_UNSIGNED_SHORT:
+ if (internalFormat != GL_RG16UI)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_SHORT:
+ if (internalFormat != GL_RG16I)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_UNSIGNED_INT:
+ if (internalFormat != GL_RG32UI)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_INT:
+ if (internalFormat != GL_RG32I)
+ return GL_INVALID_OPERATION;
+ break;
+
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_RED:
+ switch (type) {
+ case GL_UNSIGNED_BYTE:
+ if (internalFormat != GL_R8)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_BYTE:
+ if (internalFormat != GL_R8_SNORM)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_HALF_FLOAT:
+ if (internalFormat != GL_R16F)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_FLOAT:
+ switch (internalFormat) {
+ case GL_R16F:
+ case GL_R32F:
+ break;
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_RED_INTEGER:
+ switch (type) {
+ case GL_UNSIGNED_BYTE:
+ if (internalFormat != GL_R8UI)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_BYTE:
+ if (internalFormat != GL_R8I)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_UNSIGNED_SHORT:
+ if (internalFormat != GL_R16UI)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_SHORT:
+ if (internalFormat != GL_R16I)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_UNSIGNED_INT:
+ if (internalFormat != GL_R32UI)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_INT:
+ if (internalFormat != GL_R32I)
+ return GL_INVALID_OPERATION;
+ break;
+
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_DEPTH_COMPONENT:
+ switch (type) {
+ case GL_UNSIGNED_SHORT:
+ if (internalFormat != GL_DEPTH_COMPONENT
+ && internalFormat != GL_DEPTH_COMPONENT16)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_UNSIGNED_INT:
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ break;
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_FLOAT:
+ if (internalFormat != GL_DEPTH_COMPONENT32F)
+ return GL_INVALID_OPERATION;
+ break;
+
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_DEPTH_STENCIL:
+ switch (type) {
+ case GL_UNSIGNED_INT_24_8:
+ if (internalFormat != GL_DEPTH_STENCIL
+ && internalFormat != GL_DEPTH24_STENCIL8)
+ return GL_INVALID_OPERATION;
+ break;
+
+ case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
+ if (internalFormat != GL_DEPTH32F_STENCIL8)
+ return GL_INVALID_OPERATION;
+ break;
+
+ default:
+ return GL_INVALID_OPERATION;
+ }
+ break;
+
+ case GL_ALPHA:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_ALPHA:
+ if (type != GL_UNSIGNED_BYTE || format != internalFormat)
+ return GL_INVALID_OPERATION;
+ break;
+ }
+
+ return GL_NO_ERROR;
+}
+
+static void
+set_swizzle(uint8_t *swizzle, int x, int y, int z, int w)
+{
+ swizzle[MESA_FORMAT_SWIZZLE_X] = x;
+ swizzle[MESA_FORMAT_SWIZZLE_Y] = y;
+ swizzle[MESA_FORMAT_SWIZZLE_Z] = z;
+ swizzle[MESA_FORMAT_SWIZZLE_W] = w;
+}
+
+static bool
+get_swizzle_from_gl_format(GLenum format, uint8_t *swizzle)
+{
+ switch (format) {
+ case GL_RGBA:
+ case GL_RGBA_INTEGER_EXT:
+ set_swizzle(swizzle, 0, 1, 2, 3);
+ return true;
+ case GL_BGRA:
+ case GL_BGRA_INTEGER_EXT:
+ set_swizzle(swizzle, 2, 1, 0, 3);
+ return true;
+ case GL_ABGR_EXT:
+ set_swizzle(swizzle, 3, 2, 1, 0);
+ return true;
+ case GL_RGB:
+ case GL_RGB_INTEGER_EXT:
+ set_swizzle(swizzle, 0, 1, 2, 5);
+ return true;
+ case GL_BGR:
+ case GL_BGR_INTEGER_EXT:
+ set_swizzle(swizzle, 2, 1, 0, 5);
+ return true;
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+ set_swizzle(swizzle, 0, 0, 0, 1);
+ return true;
+ case GL_RG:
+ case GL_RG_INTEGER:
+ set_swizzle(swizzle, 0, 1, 4, 5);
+ return true;
+ case GL_RED:
+ case GL_RED_INTEGER_EXT:
+ set_swizzle(swizzle, 0, 4, 4, 5);
+ return true;
+ case GL_GREEN:
+ case GL_GREEN_INTEGER_EXT:
+ set_swizzle(swizzle, 4, 0, 4, 5);
+ return true;
+ case GL_BLUE:
+ case GL_BLUE_INTEGER_EXT:
+ set_swizzle(swizzle, 4, 4, 0, 5);
+ return true;
+ case GL_ALPHA:
+ case GL_ALPHA_INTEGER_EXT:
+ set_swizzle(swizzle, 4, 4, 4, 0);
+ return true;
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_INTEGER_EXT:
+ set_swizzle(swizzle, 0, 0, 0, 5);
+ return true;
+ case GL_INTENSITY:
+ set_swizzle(swizzle, 0, 0, 0, 0);
+ return true;
+ default:
+ return false;
+ }
+}
+
+/**
+* Take an OpenGL format (GL_RGB, GL_RGBA, etc), OpenGL data type (GL_INT,
+* GL_FOAT, etc) and return a matching mesa_array_format or a mesa_format
+* otherwise (for non-array formats).
+*
+* This function will typically be used to compute a mesa format from a GL type
+* so we can then call _mesa_format_convert. This function does
+* not consider byte swapping, so it returns types assuming that no byte
+* swapping is involved. If byte swapping is involved then clients are supposed
+* to handle that on their side before calling _mesa_format_convert.
+*
+* This function returns an uint32_t that can pack a mesa_format or a
+* mesa_array_format. Clients must check the mesa array format bit
+* (MESA_ARRAY_FORMAT_BIT) on the return value to know if the returned
+* format is a mesa_array_format or a mesa_format.
+*/
+uint32_t
+_mesa_format_from_format_and_type(GLenum format, GLenum type)
+{
+ mesa_array_format array_format;
+
+ bool is_array_format = true;
+ uint8_t swizzle[4];
+ bool normalized = false, is_float = false, is_signed = false;
+ int num_channels = 0, type_size = 0;
+
+ /* Extract array format type information from the OpenGL data type */
+ switch (type) {
+ case GL_UNSIGNED_BYTE:
+ type_size = 1;
+ break;
+ case GL_BYTE:
+ type_size = 1;
+ is_signed = true;
+ break;
+ case GL_UNSIGNED_SHORT:
+ type_size = 2;
+ break;
+ case GL_SHORT:
+ type_size = 2;
+ is_signed = true;
+ break;
+ case GL_UNSIGNED_INT:
+ type_size = 4;
+ break;
+ case GL_INT:
+ type_size = 4;
+ is_signed = true;
+ break;
+ case GL_HALF_FLOAT:
+ type_size = 2;
+ is_signed = true;
+ is_float = true;
+ break;
+ case GL_FLOAT:
+ type_size = 4;
+ is_signed = true;
+ is_float = true;
+ break;
+ default:
+ is_array_format = false;
+ break;
+ }
+
+ /* Extract array format swizzle information from the OpenGL format */
+ if (is_array_format)
+ is_array_format = get_swizzle_from_gl_format(format, swizzle);
+
+ /* If this is an array format type after checking data type and format,
+ * create the array format
+ */
+ if (is_array_format) {
+ normalized = !_mesa_is_enum_format_integer(format);
+ num_channels = _mesa_components_in_format(format);
+
+ array_format =
+ MESA_ARRAY_FORMAT(type_size, is_signed, is_float,
+ normalized, num_channels,
+ swizzle[0], swizzle[1], swizzle[2], swizzle[3]);
+
+ if (!_mesa_little_endian())
+ array_format = _mesa_array_format_flip_channels(array_format);
+
+ return array_format;
+ }
+
+ /* Otherwise this is not an array format, so return the mesa_format
+ * matching the OpenGL format and data type
+ */
+ switch (type) {
+ case GL_UNSIGNED_SHORT_5_6_5:
+ if (format == GL_RGB)
+ return MESA_FORMAT_B5G6R5_UNORM;
+ else if (format == GL_BGR)
+ return MESA_FORMAT_R5G6B5_UNORM;
+ break;
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ if (format == GL_RGB)
+ return MESA_FORMAT_R5G6B5_UNORM;
+ else if (format == GL_BGR)
+ return MESA_FORMAT_B5G6R5_UNORM;
+ break;
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ if (format == GL_RGBA)
+ return MESA_FORMAT_A4B4G4R4_UNORM;
+ else if (format == GL_BGRA)
+ return MESA_FORMAT_A4R4G4B4_UNORM;
+ else if (format == GL_ABGR_EXT)
+ return MESA_FORMAT_R4G4B4A4_UNORM;
+ break;
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ if (format == GL_RGBA)
+ return MESA_FORMAT_R4G4B4A4_UNORM;
+ else if (format == GL_BGRA)
+ return MESA_FORMAT_B4G4R4A4_UNORM;
+ else if (format == GL_ABGR_EXT)
+ return MESA_FORMAT_A4B4G4R4_UNORM;
+ break;
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ if (format == GL_RGBA)
+ return MESA_FORMAT_A1B5G5R5_UNORM;
+ else if (format == GL_BGRA)
+ return MESA_FORMAT_A1R5G5B5_UNORM;
+ break;
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ if (format == GL_RGBA)
+ return MESA_FORMAT_R5G5B5A1_UNORM;
+ else if (format == GL_BGRA)
+ return MESA_FORMAT_B5G5R5A1_UNORM;
+ break;
+ case GL_UNSIGNED_BYTE_3_3_2:
+ if (format == GL_RGB)
+ return MESA_FORMAT_B2G3R3_UNORM;
+ break;
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ if (format == GL_RGB)
+ return MESA_FORMAT_R3G3B2_UNORM;
+ break;
+ case GL_UNSIGNED_INT_5_9_9_9_REV:
+ if (format == GL_RGB)
+ return MESA_FORMAT_R9G9B9E5_FLOAT;
+ break;
+ case GL_UNSIGNED_INT_10_10_10_2:
+ if (format == GL_RGBA)
+ return MESA_FORMAT_A2B10G10R10_UNORM;
+ else if (format == GL_RGBA_INTEGER)
+ return MESA_FORMAT_A2B10G10R10_UINT;
+ else if (format == GL_BGRA)
+ return MESA_FORMAT_A2R10G10B10_UNORM;
+ else if (format == GL_BGRA_INTEGER)
+ return MESA_FORMAT_A2R10G10B10_UINT;
+ break;
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ if (format == GL_RGBA)
+ return MESA_FORMAT_R10G10B10A2_UNORM;
+ else if (format == GL_RGBA_INTEGER)
+ return MESA_FORMAT_R10G10B10A2_UINT;
+ else if (format == GL_BGRA)
+ return MESA_FORMAT_B10G10R10A2_UNORM;
+ else if (format == GL_BGRA_INTEGER)
+ return MESA_FORMAT_B10G10R10A2_UINT;
+ break;
+ case GL_UNSIGNED_INT_8_8_8_8:
+ if (format == GL_RGBA)
+ return MESA_FORMAT_A8B8G8R8_UNORM;
+ else if (format == GL_BGRA)
+ return MESA_FORMAT_A8R8G8B8_UNORM;
+ else if (format == GL_ABGR_EXT)
+ return MESA_FORMAT_R8G8B8A8_UNORM;
+ break;
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ if (format == GL_RGBA)
+ return MESA_FORMAT_R8G8B8A8_UNORM;
+ else if (format == GL_BGRA)
+ return MESA_FORMAT_B8G8R8A8_UNORM;
+ else if (format == GL_ABGR_EXT)
+ return MESA_FORMAT_A8B8G8R8_UNORM;
+ break;
+ case GL_UNSIGNED_SHORT_8_8_MESA:
+ if (format == GL_YCBCR_MESA)
+ return MESA_FORMAT_YCBCR;
+ break;
+ case GL_UNSIGNED_SHORT_8_8_REV_MESA:
+ if (format == GL_YCBCR_MESA)
+ return MESA_FORMAT_YCBCR_REV;
+ break;
+ case GL_UNSIGNED_INT_10F_11F_11F_REV:
+ if (format == GL_RGB)
+ return MESA_FORMAT_R11G11B10_FLOAT;
+ default:
+ break;
+ }
+
+ /* If we got here it means that we could not find a Mesa format that
+ * matches the GL format/type provided. We may need to add a new Mesa
+ * format in that case.
+ */
+ assert(!"Unsupported format");
+}
projects / mesa.git / blobdiff