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st/mesa: consolidate code for finding supported formats

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This commit is contained in:
Brian Paul 2010-04-22 11:04:04 -06:00
parent e65b11525a
commit 1143221cfd
1 changed files with 57 additions and 92 deletions
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149
src/mesa/state_tracker/st_format.c
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@ -302,6 +302,28 @@ st_pipe_format_to_mesa_format(enum pipe_format format)
}
/**
* Return first supported format from the given list.
*/
static enum pipe_format
find_supported_format(struct pipe_screen *screen,
const enum pipe_format formats[],
uint num_formats,
enum pipe_texture_target target,
unsigned tex_usage,
unsigned geom_flags)
{
uint i;
for (i = 0; i < num_formats; i++) {
if (screen->is_format_supported(screen, formats[i], target,
tex_usage, geom_flags)) {
return formats[i];
}
}
return PIPE_FORMAT_NONE;
}
/**
* Find an RGBA format supported by the context/winsys.
*/
@ -317,15 +339,11 @@ default_rgba_format(struct pipe_screen *screen,
PIPE_FORMAT_A8B8G8R8_UNORM,
PIPE_FORMAT_B5G6R5_UNORM
};
uint i;
for (i = 0; i < Elements(colorFormats); i++) {
if (screen->is_format_supported( screen, colorFormats[i], target, tex_usage, geom_flags )) {
return colorFormats[i];
}
}
return PIPE_FORMAT_NONE;
return find_supported_format(screen, colorFormats, Elements(colorFormats),
target, tex_usage, geom_flags);
}
/**
* Find an RGB format supported by the context/winsys.
*/
@ -344,13 +362,8 @@ default_rgb_format(struct pipe_screen *screen,
PIPE_FORMAT_A8B8G8R8_UNORM,
PIPE_FORMAT_B5G6R5_UNORM
};
uint i;
for (i = 0; i < Elements(colorFormats); i++) {
if (screen->is_format_supported( screen, colorFormats[i], target, tex_usage, geom_flags )) {
return colorFormats[i];
}
}
return PIPE_FORMAT_NONE;
return find_supported_format(screen, colorFormats, Elements(colorFormats),
target, tex_usage, geom_flags);
}
/**
@ -367,15 +380,11 @@ default_srgba_format(struct pipe_screen *screen,
PIPE_FORMAT_A8R8G8B8_SRGB,
PIPE_FORMAT_A8B8G8R8_SRGB,
};
uint i;
for (i = 0; i < Elements(colorFormats); i++) {
if (screen->is_format_supported( screen, colorFormats[i], target, tex_usage, geom_flags )) {
return colorFormats[i];
}
}
return PIPE_FORMAT_NONE;
return find_supported_format(screen, colorFormats, Elements(colorFormats),
target, tex_usage, geom_flags);
}
/**
* Search list of formats for first RGBA format with >8 bits/channel.
*/
@ -395,74 +404,6 @@ default_deep_rgba_format(struct pipe_screen *screen,
}
/**
* Find an Z format supported by the context/winsys.
*/
static enum pipe_format
default_depth_format(struct pipe_screen *screen,
enum pipe_texture_target target,
unsigned tex_usage,
unsigned geom_flags)
{
static const enum pipe_format zFormats[] = {
PIPE_FORMAT_Z16_UNORM,
PIPE_FORMAT_Z32_UNORM,
PIPE_FORMAT_Z24_UNORM_S8_USCALED,
PIPE_FORMAT_S8_USCALED_Z24_UNORM
};
uint i;
for (i = 0; i < Elements(zFormats); i++) {
if (screen->is_format_supported( screen, zFormats[i], target, tex_usage, geom_flags )) {
return zFormats[i];
}
}
return PIPE_FORMAT_NONE;
}
static enum pipe_format
default_depth_stencil_format(struct pipe_screen *screen,
enum pipe_texture_target target,
unsigned tex_usage,
unsigned geom_flags)
{
static const enum pipe_format zsFormats[] = {
PIPE_FORMAT_Z24_UNORM_S8_USCALED,
PIPE_FORMAT_S8_USCALED_Z24_UNORM
};
uint i;
for (i = 0; i < Elements(zsFormats); i++) {
if (screen->is_format_supported( screen, zsFormats[i], target,
tex_usage, geom_flags )) {
return zsFormats[i];
}
}
return PIPE_FORMAT_NONE;
}
static enum pipe_format
default_stencil_format(struct pipe_screen *screen,
enum pipe_texture_target target,
unsigned tex_usage,
unsigned geom_flags)
{
static const enum pipe_format sFormats[] = {
PIPE_FORMAT_S8_USCALED,
PIPE_FORMAT_Z24_UNORM_S8_USCALED,
PIPE_FORMAT_S8_USCALED_Z24_UNORM
};
uint i;
for (i = 0; i < Elements(sFormats); i++) {
if (screen->is_format_supported( screen, sFormats[i], target,
tex_usage, geom_flags )) {
return sFormats[i];
}
}
return PIPE_FORMAT_NONE;
}
/**
* Given an OpenGL internalFormat value for a texture or surface, return
* the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match.
@ -613,18 +554,42 @@ st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
return PIPE_FORMAT_Z32_UNORM;
/* fall-through */
case GL_DEPTH_COMPONENT:
return default_depth_format( screen, target, tex_usage, geom_flags );
{
static const enum pipe_format formats[] = {
PIPE_FORMAT_Z16_UNORM,
PIPE_FORMAT_Z32_UNORM,
PIPE_FORMAT_Z24_UNORM_S8_USCALED,
PIPE_FORMAT_S8_USCALED_Z24_UNORM
};
return find_supported_format(screen, formats, Elements(formats),
target, tex_usage, geom_flags);
}
case GL_STENCIL_INDEX:
case GL_STENCIL_INDEX1_EXT:
case GL_STENCIL_INDEX4_EXT:
case GL_STENCIL_INDEX8_EXT:
case GL_STENCIL_INDEX16_EXT:
return default_stencil_format(screen, target, tex_usage, geom_flags);
{
static const enum pipe_format formats[] = {
PIPE_FORMAT_S8_USCALED,
PIPE_FORMAT_Z24_UNORM_S8_USCALED,
PIPE_FORMAT_S8_USCALED_Z24_UNORM
};
return find_supported_format(screen, formats, Elements(formats),
target, tex_usage, geom_flags);
}
case GL_DEPTH_STENCIL_EXT:
case GL_DEPTH24_STENCIL8_EXT:
return default_depth_stencil_format(screen, target, tex_usage, geom_flags);
{
static const enum pipe_format formats[] = {
PIPE_FORMAT_Z24_UNORM_S8_USCALED,
PIPE_FORMAT_S8_USCALED_Z24_UNORM
};
return find_supported_format(screen, formats, Elements(formats),
target, tex_usage, geom_flags);
}
case GL_SRGB_EXT:
case GL_SRGB8_EXT: