static boolean r300_is_format_supported(struct pipe_screen* screen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned usage,
unsigned geom_flags)
{
uint32_t retval = 0;
boolean is_r500 = r300_screen(screen)->caps->is_r500;
boolean is_z24 = format == PIPE_FORMAT_X8Z24_UNORM ||
format == PIPE_FORMAT_S8Z24_UNORM;
boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM;
if (target >= PIPE_MAX_TEXTURE_TYPES) {
debug_printf("r300: Implementation error: Received bogus texture "
"target %d in %s\n", target, __FUNCTION__);
return FALSE;
}
/* Check sampler format support. */
if ((usage & PIPE_TEXTURE_USAGE_SAMPLER) &&
/* Z24 cannot be sampled from on non-r5xx. */
(is_r500 || !is_z24) &&
r300_is_sampler_format_supported(format)) {
retval |= PIPE_TEXTURE_USAGE_SAMPLER;
}
/* Check colorbuffer format support. */
if ((usage & (PIPE_TEXTURE_USAGE_RENDER_TARGET |
PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
PIPE_TEXTURE_USAGE_PRIMARY)) &&
/* 2101010 cannot be rendered to on non-r5xx. */
(is_r500 || !is_color2101010) &&
r300_is_colorbuffer_format_supported(format)) {
retval |= usage &
(PIPE_TEXTURE_USAGE_RENDER_TARGET |
PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
PIPE_TEXTURE_USAGE_PRIMARY);
}
/* Check depth-stencil format support. */
if (usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL &&
r300_is_zs_format_supported(format)) {
retval |= PIPE_TEXTURE_USAGE_DEPTH_STENCIL;
}
return retval == usage;
}
static boolean r300_is_format_supported(struct pipe_screen* screen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned sample_count,
unsigned usage)
{
uint32_t retval = 0;
boolean drm_2_8_0 = r300_screen(screen)->info.drm_minor >= 8;
boolean is_r500 = r300_screen(screen)->caps.is_r500;
boolean is_r400 = r300_screen(screen)->caps.is_r400;
boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
format == PIPE_FORMAT_R10G10B10X2_SNORM ||
format == PIPE_FORMAT_B10G10R10A2_UNORM ||
format == PIPE_FORMAT_B10G10R10X2_UNORM ||
format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
format == PIPE_FORMAT_RGTC1_SNORM ||
format == PIPE_FORMAT_LATC1_UNORM ||
format == PIPE_FORMAT_LATC1_SNORM;
boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
format == PIPE_FORMAT_RGTC2_SNORM ||
format == PIPE_FORMAT_LATC2_UNORM ||
format == PIPE_FORMAT_LATC2_SNORM;
boolean is_x16f_xy16f = format == PIPE_FORMAT_R16_FLOAT ||
format == PIPE_FORMAT_R16G16_FLOAT ||
format == PIPE_FORMAT_A16_FLOAT ||
format == PIPE_FORMAT_L16_FLOAT ||
format == PIPE_FORMAT_L16A16_FLOAT ||
format == PIPE_FORMAT_R16A16_FLOAT ||
format == PIPE_FORMAT_I16_FLOAT;
boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
format == PIPE_FORMAT_R16G16_FLOAT ||
format == PIPE_FORMAT_R16G16B16_FLOAT ||
format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
format == PIPE_FORMAT_R16G16B16X16_FLOAT;
const struct util_format_description *desc;
if (!util_format_is_supported(format, usage))
return FALSE;
/* Check multisampling support. */
switch (sample_count) {
case 0:
case 1:
break;
case 2:
case 4:
case 6:
/* We need DRM 2.8.0. */
if (!drm_2_8_0) {
return FALSE;
}
/* No texturing and scanout. */
if (usage & (PIPE_BIND_SAMPLER_VIEW |
PIPE_BIND_DISPLAY_TARGET |
PIPE_BIND_SCANOUT)) {
return FALSE;
}
desc = util_format_description(format);
if (is_r500) {
/* Only allow depth/stencil, RGBA8, RGBA1010102, RGBA16F. */
if (!util_format_is_depth_or_stencil(format) &&
!util_format_is_rgba8_variant(desc) &&
!util_format_is_rgba1010102_variant(desc) &&
format != PIPE_FORMAT_R16G16B16A16_FLOAT &&
format != PIPE_FORMAT_R16G16B16X16_FLOAT) {
return FALSE;
}
} else {
/* Only allow depth/stencil, RGBA8. */
if (!util_format_is_depth_or_stencil(format) &&
!util_format_is_rgba8_variant(desc)) {
return FALSE;
}
}
break;
default:
return FALSE;
}
/* Check sampler format support. */
if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
/* these two are broken for an unknown reason */
format != PIPE_FORMAT_R8G8B8X8_SNORM &&
format != PIPE_FORMAT_R16G16B16X16_SNORM &&
/* ATI1N is r5xx-only. */
(is_r500 || !is_ati1n) &&
/* ATI2N is supported on r4xx-r5xx. */
(is_r400 || is_r500 || !is_ati2n) &&
/* R16F and RG16F texture support was added in as late as DRM 2.8.0 */
(drm_2_8_0 || !is_x16f_xy16f) &&
r300_is_sampler_format_supported(format)) {
retval |= PIPE_BIND_SAMPLER_VIEW;
}
/* Check colorbuffer format support. */
if ((usage & (PIPE_BIND_RENDER_TARGET |
PIPE_BIND_DISPLAY_TARGET |
PIPE_BIND_SCANOUT |
PIPE_BIND_SHARED |
PIPE_BIND_BLENDABLE)) &&
/* 2101010 cannot be rendered to on non-r5xx. */
(!is_color2101010 || (is_r500 && drm_2_8_0)) &&
r300_is_colorbuffer_format_supported(format)) {
retval |= usage &
(PIPE_BIND_RENDER_TARGET |
PIPE_BIND_DISPLAY_TARGET |
PIPE_BIND_SCANOUT |
PIPE_BIND_SHARED);
if (r300_is_blending_supported(r300_screen(screen), format)) {
retval |= usage & PIPE_BIND_BLENDABLE;
}
}
/* Check depth-stencil format support. */
if (usage & PIPE_BIND_DEPTH_STENCIL &&
r300_is_zs_format_supported(format)) {
retval |= PIPE_BIND_DEPTH_STENCIL;
}
/* Check vertex buffer format support. */
if (usage & PIPE_BIND_VERTEX_BUFFER) {
if (r300_screen(screen)->caps.has_tcl) {
/* Half float is supported on >= R400. */
if ((is_r400 || is_r500 || !is_half_float) &&
r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
retval |= PIPE_BIND_VERTEX_BUFFER;
}
} else {
/* SW TCL */
if (!util_format_is_pure_integer(format)) {
retval |= PIPE_BIND_VERTEX_BUFFER;
}
}
}
/* Transfers are always supported. */
if (usage & PIPE_BIND_TRANSFER_READ)
retval |= PIPE_BIND_TRANSFER_READ;
if (usage & PIPE_BIND_TRANSFER_WRITE)
retval |= PIPE_BIND_TRANSFER_WRITE;
return retval == usage;
}
static boolean r300_is_format_supported(struct pipe_screen* screen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned sample_count,
unsigned usage)
{
uint32_t retval = 0;
boolean drm_2_8_0 = r300_screen(screen)->info.drm_minor >= 8;
boolean is_r500 = r300_screen(screen)->caps.is_r500;
boolean is_r400 = r300_screen(screen)->caps.is_r400;
boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
format == PIPE_FORMAT_R10G10B10X2_SNORM ||
format == PIPE_FORMAT_B10G10R10A2_UNORM ||
format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
format == PIPE_FORMAT_RGTC1_SNORM ||
format == PIPE_FORMAT_LATC1_UNORM ||
format == PIPE_FORMAT_LATC1_SNORM;
boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
format == PIPE_FORMAT_RGTC2_SNORM ||
format == PIPE_FORMAT_LATC2_UNORM ||
format == PIPE_FORMAT_LATC2_SNORM;
boolean is_x16f_xy16f = format == PIPE_FORMAT_R16_FLOAT ||
format == PIPE_FORMAT_R16G16_FLOAT ||
format == PIPE_FORMAT_A16_FLOAT ||
format == PIPE_FORMAT_L16_FLOAT ||
format == PIPE_FORMAT_L16A16_FLOAT ||
format == PIPE_FORMAT_I16_FLOAT;
boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
format == PIPE_FORMAT_R16G16_FLOAT ||
format == PIPE_FORMAT_R16G16B16_FLOAT ||
format == PIPE_FORMAT_R16G16B16A16_FLOAT;
boolean is_fixed = format == PIPE_FORMAT_R32_FIXED ||
format == PIPE_FORMAT_R32G32_FIXED ||
format == PIPE_FORMAT_R32G32B32_FIXED ||
format == PIPE_FORMAT_R32G32B32A32_FIXED;
if (!util_format_is_supported(format, usage))
return FALSE;
/* Check multisampling support. */
switch (sample_count) {
case 0:
case 1:
break;
case 2:
case 3:
case 4:
case 6:
return FALSE;
#if 0
if (usage != PIPE_BIND_RENDER_TARGET ||
!util_format_is_rgba8_variant(
util_format_description(format))) {
return FALSE;
}
#endif
break;
default:
return FALSE;
}
/* Check sampler format support. */
if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
/* ATI1N is r5xx-only. */
(is_r500 || !is_ati1n) &&
/* ATI2N is supported on r4xx-r5xx. */
(is_r400 || is_r500 || !is_ati2n) &&
/* R16F and RG16F texture support was added in as late as DRM 2.8.0 */
(drm_2_8_0 || !is_x16f_xy16f) &&
r300_is_sampler_format_supported(format)) {
retval |= PIPE_BIND_SAMPLER_VIEW;
}
/* Check colorbuffer format support. */
if ((usage & (PIPE_BIND_RENDER_TARGET |
PIPE_BIND_DISPLAY_TARGET |
PIPE_BIND_SCANOUT |
PIPE_BIND_SHARED)) &&
/* 2101010 cannot be rendered to on non-r5xx. */
(!is_color2101010 || (is_r500 && drm_2_8_0)) &&
r300_is_colorbuffer_format_supported(format)) {
retval |= usage &
(PIPE_BIND_RENDER_TARGET |
PIPE_BIND_DISPLAY_TARGET |
PIPE_BIND_SCANOUT |
PIPE_BIND_SHARED);
}
/* Check depth-stencil format support. */
if (usage & PIPE_BIND_DEPTH_STENCIL &&
r300_is_zs_format_supported(format)) {
retval |= PIPE_BIND_DEPTH_STENCIL;
}
/* Check vertex buffer format support. */
if (usage & PIPE_BIND_VERTEX_BUFFER &&
/* Half float is supported on >= R400. */
(is_r400 || is_r500 || !is_half_float) &&
/* We have a fallback for FIXED. */
(is_fixed || r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT)) {
retval |= PIPE_BIND_VERTEX_BUFFER;
}
/* Transfers are always supported. */
if (usage & PIPE_BIND_TRANSFER_READ)
retval |= PIPE_BIND_TRANSFER_READ;
if (usage & PIPE_BIND_TRANSFER_WRITE)
retval |= PIPE_BIND_TRANSFER_WRITE;
return retval == usage;
}
