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Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_format.c')
-rw-r--r--mesalib/src/mesa/state_tracker/st_format.c96
1 files changed, 93 insertions, 3 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_format.c b/mesalib/src/mesa/state_tracker/st_format.c
index 263613b2c..8118df37d 100644
--- a/mesalib/src/mesa/state_tracker/st_format.c
+++ b/mesalib/src/mesa/state_tracker/st_format.c
@@ -1124,6 +1124,87 @@ find_supported_format(struct pipe_screen *screen,
return PIPE_FORMAT_NONE;
}
+struct exact_format_mapping
+{
+ GLenum format;
+ GLenum type;
+ enum pipe_format pformat;
+};
+
+static const struct exact_format_mapping rgba8888_tbl[] =
+{
+ { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_A8B8G8R8_UNORM },
+ { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_A8B8G8R8_UNORM },
+ { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_R8G8B8A8_UNORM },
+ { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_R8G8B8A8_UNORM },
+ { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_A8R8G8B8_UNORM },
+ { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_B8G8R8A8_UNORM },
+ { GL_RGBA, GL_UNSIGNED_BYTE, PIPE_FORMAT_R8G8B8A8_UNORM },
+ { GL_ABGR_EXT, GL_UNSIGNED_BYTE, PIPE_FORMAT_A8B8G8R8_UNORM },
+ { GL_BGRA, GL_UNSIGNED_BYTE, PIPE_FORMAT_B8G8R8A8_UNORM },
+ { 0, 0, 0 }
+};
+
+static const struct exact_format_mapping rgbx8888_tbl[] =
+{
+ { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_X8B8G8R8_UNORM },
+ { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_X8B8G8R8_UNORM },
+ { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_R8G8B8X8_UNORM },
+ { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_R8G8B8X8_UNORM },
+ { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_X8R8G8B8_UNORM },
+ { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_B8G8R8X8_UNORM },
+ { GL_RGBA, GL_UNSIGNED_BYTE, PIPE_FORMAT_R8G8B8X8_UNORM },
+ { GL_ABGR_EXT, GL_UNSIGNED_BYTE, PIPE_FORMAT_X8B8G8R8_UNORM },
+ { GL_BGRA, GL_UNSIGNED_BYTE, PIPE_FORMAT_B8G8R8X8_UNORM },
+ { 0, 0, 0 }
+};
+
+static const struct exact_format_mapping rgba1010102_tbl[] =
+{
+ { GL_BGRA, GL_UNSIGNED_INT_2_10_10_10_REV, PIPE_FORMAT_B10G10R10A2_UNORM },
+ { GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, PIPE_FORMAT_R10G10B10A2_UNORM },
+ { GL_ABGR_EXT, GL_UNSIGNED_INT_10_10_10_2, PIPE_FORMAT_R10G10B10A2_UNORM },
+ { GL_ABGR_EXT, GL_UNSIGNED_INT, PIPE_FORMAT_R10G10B10A2_UNORM },
+ { 0, 0, 0 }
+};
+
+/**
+ * If there is an exact pipe_format match for {internalFormat, format, type}
+ * return that, otherwise return PIPE_FORMAT_NONE so we can do fuzzy matching.
+ */
+static enum pipe_format
+find_exact_format(GLint internalFormat, GLenum format, GLenum type)
+{
+ uint i;
+ const struct exact_format_mapping* tbl;
+
+ if (format == GL_NONE || type == GL_NONE)
+ return PIPE_FORMAT_NONE;
+
+ switch (internalFormat) {
+ case 4:
+ case GL_RGBA:
+ case GL_RGBA8:
+ tbl = rgba8888_tbl;
+ break;
+ case 3:
+ case GL_RGB:
+ case GL_RGB8:
+ tbl = rgbx8888_tbl;
+ break;
+ case GL_RGB10_A2:
+ tbl = rgba1010102_tbl;
+ break;
+ default:
+ return PIPE_FORMAT_NONE;
+ }
+
+ for (i = 0; tbl[i].format; i++)
+ if (tbl[i].format == format && tbl[i].type == type)
+ return tbl[i].pformat;
+
+ return PIPE_FORMAT_NONE;
+}
/**
* Given an OpenGL internalFormat value for a texture or surface, return
@@ -1140,11 +1221,13 @@ find_supported_format(struct pipe_screen *screen,
*/
enum pipe_format
st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
+ GLenum format, GLenum type,
enum pipe_texture_target target, unsigned sample_count,
unsigned bindings)
{
GET_CURRENT_CONTEXT(ctx); /* XXX this should be a function parameter */
int i, j;
+ enum pipe_format pf;
/* can't render to compressed formats at this time */
if (_mesa_is_compressed_format(ctx, internalFormat)
@@ -1152,6 +1235,13 @@ st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
return PIPE_FORMAT_NONE;
}
+ /* search for exact matches */
+ pf = find_exact_format(internalFormat, format, type);
+ if (pf != PIPE_FORMAT_NONE &&
+ screen->is_format_supported(screen, pf,
+ target, sample_count, bindings))
+ return pf;
+
/* search table for internalFormat */
for (i = 0; i < Elements(format_map); i++) {
const struct format_mapping *mapping = &format_map[i];
@@ -1183,7 +1273,7 @@ st_choose_renderbuffer_format(struct pipe_screen *screen,
usage = PIPE_BIND_DEPTH_STENCIL;
else
usage = PIPE_BIND_RENDER_TARGET;
- return st_choose_format(screen, internalFormat, PIPE_TEXTURE_2D,
+ return st_choose_format(screen, internalFormat, GL_NONE, GL_NONE, PIPE_TEXTURE_2D,
sample_count, usage);
}
@@ -1210,12 +1300,12 @@ st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat,
bindings |= PIPE_BIND_RENDER_TARGET;
}
- pFormat = st_choose_format(screen, internalFormat,
+ pFormat = st_choose_format(screen, internalFormat, format, type,
PIPE_TEXTURE_2D, 0, bindings);
if (pFormat == PIPE_FORMAT_NONE) {
/* try choosing format again, this time without render target bindings */
- pFormat = st_choose_format(screen, internalFormat,
+ pFormat = st_choose_format(screen, internalFormat, format, type,
PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW);
}