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readpix: allow implementation format/type

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For GLES2/3 allow reading of pixels with format/type based on:
 * GL_IMPLEMENTATION_COLOR_READ_FORMAT
 * GL_IMPLEMENTATION_COLOR_READ_TYPE

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Jordan Justen
2013-01-12 01:05:44 -08:00
committed by Matt Turner
parent 119002a648
commit ffdffd834a
1 changed files with 6 additions and 1 deletions
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src/mesa/main/readpix.c
+6 -1
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@@ -773,7 +773,12 @@ _mesa_ReadnPixelsARB( GLint x, GLint y, GLsizei width, GLsizei height,
* combination is, and Mesa can handle anything valid. Just work instead.
*/
if (_mesa_is_gles(ctx)) {
if (ctx->Version < 30) {
if (ctx->API == API_OPENGLES2 &&
_mesa_is_color_format(format) &&
_mesa_get_color_read_format(ctx) == format &&
_mesa_get_color_read_type(ctx) == type) {
err = GL_NO_ERROR;
} else if (ctx->Version < 30) {
err = _mesa_es_error_check_format_and_type(format, type, 2);
if (err == GL_NO_ERROR) {
if (type == GL_FLOAT || type == GL_HALF_FLOAT_OES) {