{
uint32_t retval = 0;
boolean is_r500 = r300_screen(screen)->caps->is_r500;
+ boolean is_z24 = format == PIPE_FORMAT_Z24X8_UNORM ||
+ format == PIPE_FORMAT_Z24S8_UNORM;
if (target >= PIPE_MAX_TEXTURE_TYPES) {
debug_printf("r300: Implementation error: Received bogus texture "
return FALSE;
}
+ /* Check sampler format support. */
+ if ((usage & PIPE_TEXTURE_USAGE_SAMPLER) &&
+ (is_r500 || !is_z24) && /* Z24 cannot be sampled from on non-r5xx. */
+ r300_translate_texformat(format) != ~0) {
+ retval |= PIPE_TEXTURE_USAGE_SAMPLER;
+ }
+
switch (format) {
/* Supported formats. */
/* Colorbuffer */
case PIPE_FORMAT_A8_UNORM:
case PIPE_FORMAT_L8_UNORM:
- retval = usage &
- (PIPE_TEXTURE_USAGE_RENDER_TARGET |
- PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
- PIPE_TEXTURE_USAGE_PRIMARY);
- break;
-
- /* Texture */
- case PIPE_FORMAT_A8R8G8B8_SRGB:
- case PIPE_FORMAT_R8G8B8A8_SRGB:
- case PIPE_FORMAT_DXT1_RGB:
- case PIPE_FORMAT_DXT1_RGBA:
- case PIPE_FORMAT_DXT3_RGBA:
- case PIPE_FORMAT_DXT5_RGBA:
- case PIPE_FORMAT_YCBCR:
- case PIPE_FORMAT_L8_SRGB:
- case PIPE_FORMAT_A8L8_SRGB:
- case PIPE_FORMAT_A8L8_UNORM:
- retval = usage & PIPE_TEXTURE_USAGE_SAMPLER;
- break;
-
- /* Colorbuffer or texture */
case PIPE_FORMAT_R5G6B5_UNORM:
case PIPE_FORMAT_A1R5G5B5_UNORM:
case PIPE_FORMAT_A4R4G4B4_UNORM:
case PIPE_FORMAT_R8G8B8A8_UNORM:
case PIPE_FORMAT_R8G8B8X8_UNORM:
case PIPE_FORMAT_I8_UNORM:
- retval = usage &
+ retval |= usage &
(PIPE_TEXTURE_USAGE_RENDER_TARGET |
PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
- PIPE_TEXTURE_USAGE_PRIMARY |
- PIPE_TEXTURE_USAGE_SAMPLER);
+ PIPE_TEXTURE_USAGE_PRIMARY);
break;
- /* Z buffer or texture */
+ /* ZS buffer */
case PIPE_FORMAT_Z16_UNORM:
- retval = usage &
- (PIPE_TEXTURE_USAGE_DEPTH_STENCIL |
- PIPE_TEXTURE_USAGE_SAMPLER);
- break;
-
- /* 24bit Z buffer can only be used as a texture on R500. */
case PIPE_FORMAT_Z24X8_UNORM:
- /* Z buffer with stencil or texture */
case PIPE_FORMAT_Z24S8_UNORM:
- retval = usage &
- (PIPE_TEXTURE_USAGE_DEPTH_STENCIL |
- (is_r500 ? PIPE_TEXTURE_USAGE_SAMPLER : 0));
+ retval = usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL;
break;
- /* Definitely unsupported formats. */
- /* Non-usable Z buffer/stencil formats. */
- case PIPE_FORMAT_Z32_UNORM:
- case PIPE_FORMAT_S8Z24_UNORM:
- case PIPE_FORMAT_X8Z24_UNORM:
- SCREEN_DBG(r300_screen(screen), DBG_TEX,
- "r300: Note: Got unsupported format: %s in %s\n",
- util_format_name(format), __FUNCTION__);
- return FALSE;
-
/* XXX Add all remaining gallium-supported formats,
* see util/u_format.csv. */
- default:
- /* Unknown format... */
- debug_printf("r300: Warning: Got unknown format: %s in %s\n",
- util_format_name(format), __FUNCTION__);
- break;
+ default:;
}
/* If usage was a mask that contained multiple bits, and not all of them
* makes available X, Y, Z, W, ZERO, and ONE for swizzling. */
static INLINE uint32_t r300_translate_texformat(enum pipe_format format)
{
- switch (format) {
- /* X8 */
- case PIPE_FORMAT_A8_UNORM:
- return R300_EASY_TX_FORMAT(ZERO, ZERO, ZERO, X, X8);
- case PIPE_FORMAT_I8_UNORM:
- return R300_EASY_TX_FORMAT(X, X, X, X, X8);
- case PIPE_FORMAT_L8_UNORM:
- return R300_EASY_TX_FORMAT(X, X, X, ONE, X8);
- case PIPE_FORMAT_L8_SRGB:
- return R300_EASY_TX_FORMAT(X, X, X, ONE, X8) |
- R300_TX_FORMAT_GAMMA;
- /* X16 */
- case PIPE_FORMAT_A4R4G4B4_UNORM:
- return R300_EASY_TX_FORMAT(X, Y, Z, W, W4Z4Y4X4);
- case PIPE_FORMAT_R16_UNORM:
- case PIPE_FORMAT_Z16_UNORM:
- return R300_EASY_TX_FORMAT(X, X, X, X, X16);
- case PIPE_FORMAT_R16_SNORM:
- return R300_EASY_TX_FORMAT(X, X, X, X, X16) |
- R300_TX_FORMAT_SIGNED;
- /* Z5Y6X5 */
- case PIPE_FORMAT_R5G6B5_UNORM:
- return R300_EASY_TX_FORMAT(X, Y, Z, ONE, Z5Y6X5);
- /* W1Z5Y5X5*/
- case PIPE_FORMAT_A1R5G5B5_UNORM:
- return R300_EASY_TX_FORMAT(X, Y, Z, W, W1Z5Y5X5);
- /* Y8X8 */
- case PIPE_FORMAT_A8L8_UNORM:
- return R300_EASY_TX_FORMAT(X, X, X, Y, Y8X8);
- case PIPE_FORMAT_A8L8_SRGB:
- return R300_EASY_TX_FORMAT(X, X, X, Y, Y8X8) |
- R300_TX_FORMAT_GAMMA;
- /* W8Z8Y8X8 */
- case PIPE_FORMAT_A8R8G8B8_UNORM:
- return R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8);
- case PIPE_FORMAT_R8G8B8A8_UNORM:
- return R300_EASY_TX_FORMAT(Y, Z, W, X, W8Z8Y8X8);
- case PIPE_FORMAT_X8R8G8B8_UNORM:
- return R300_EASY_TX_FORMAT(X, Y, Z, ONE, W8Z8Y8X8);
- case PIPE_FORMAT_R8G8B8X8_UNORM:
- return R300_EASY_TX_FORMAT(Y, Z, ONE, X, W8Z8Y8X8);
- case PIPE_FORMAT_A8R8G8B8_SRGB:
- return R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8) |
- R300_TX_FORMAT_GAMMA;
- case PIPE_FORMAT_R8G8B8A8_SRGB:
- return R300_EASY_TX_FORMAT(Y, Z, W, X, W8Z8Y8X8) |
- R300_TX_FORMAT_GAMMA;
- /* DXT1 */
- case PIPE_FORMAT_DXT1_RGB:
- return R300_EASY_TX_FORMAT(X, Y, Z, ONE, DXT1);
- case PIPE_FORMAT_DXT1_RGBA:
- return R300_EASY_TX_FORMAT(X, Y, Z, W, DXT1);
- /* DXT3 */
- case PIPE_FORMAT_DXT3_RGBA:
- return R300_EASY_TX_FORMAT(X, Y, Z, W, DXT3);
- /* DXT5 */
- case PIPE_FORMAT_DXT5_RGBA:
- return R300_EASY_TX_FORMAT(Y, Z, W, X, DXT5);
- /* YVYU422 */
- case PIPE_FORMAT_YCBCR:
- return R300_EASY_TX_FORMAT(X, Y, Z, ONE, YVYU422) |
- R300_TX_FORMAT_YUV_TO_RGB;
- /* W24_FP */
- case PIPE_FORMAT_Z24S8_UNORM:
- case PIPE_FORMAT_Z24X8_UNORM:
- return R300_EASY_TX_FORMAT(X, X, X, X, W24_FP);
-
- default:
- debug_printf("r300: Implementation error: "
- "Got unsupported texture format %s in %s\n",
- util_format_name(format), __FUNCTION__);
- assert(0);
+ uint32_t result = 0;
+ const struct util_format_description *desc;
+ unsigned components = 0, i;
+ boolean uniform = TRUE;
+ const uint32_t swizzle_shift[4] = {
+ R300_TX_FORMAT_R_SHIFT,
+ R300_TX_FORMAT_G_SHIFT,
+ R300_TX_FORMAT_B_SHIFT,
+ R300_TX_FORMAT_A_SHIFT
+ };
+ const uint32_t sign_bit[4] = {
+ R300_TX_FORMAT_SIGNED_X,
+ R300_TX_FORMAT_SIGNED_Y,
+ R300_TX_FORMAT_SIGNED_Z,
+ R300_TX_FORMAT_SIGNED_W,
+ };
+
+ desc = util_format_description(format);
+
+ /* Colorspace (return non-RGB formats directly). */
+ switch (desc->colorspace) {
+ /* Depth stencil formats. */
+ case UTIL_FORMAT_COLORSPACE_ZS:
+ switch (format) {
+ case PIPE_FORMAT_Z16_UNORM:
+ return R300_EASY_TX_FORMAT(X, X, X, X, X16);
+ case PIPE_FORMAT_Z24X8_UNORM:
+ case PIPE_FORMAT_Z24S8_UNORM:
+ return R300_EASY_TX_FORMAT(X, X, X, X, W24_FP);
+ default:
+ return ~0; /* Unsupported. */
+ }
+
+ /* YUV formats. */
+ case UTIL_FORMAT_COLORSPACE_YUV:
+ result |= R300_TX_FORMAT_YUV_TO_RGB;
+
+ switch (format) {
+ case PIPE_FORMAT_YCBCR:
+ return R300_EASY_TX_FORMAT(X, Y, Z, ONE, YVYU422) | result;
+ case PIPE_FORMAT_YCBCR_REV:
+ return R300_EASY_TX_FORMAT(X, Y, Z, ONE, VYUY422) | result;
+ default:
+ return ~0; /* Unsupported/unknown. */
+ }
+
+ /* Add gamma correction. */
+ case UTIL_FORMAT_COLORSPACE_SRGB:
+ result |= R300_TX_FORMAT_GAMMA;
break;
+
+ default:;
+ }
+
+ /* Add swizzle. */
+ for (i = 0; i < 4; i++) {
+ switch (desc->swizzle[i]) {
+ case UTIL_FORMAT_SWIZZLE_X:
+ case UTIL_FORMAT_SWIZZLE_NONE:
+ result |= R300_TX_FORMAT_X << swizzle_shift[i];
+ break;
+ case UTIL_FORMAT_SWIZZLE_Y:
+ result |= R300_TX_FORMAT_Y << swizzle_shift[i];
+ break;
+ case UTIL_FORMAT_SWIZZLE_Z:
+ result |= R300_TX_FORMAT_Z << swizzle_shift[i];
+ break;
+ case UTIL_FORMAT_SWIZZLE_W:
+ result |= R300_TX_FORMAT_W << swizzle_shift[i];
+ break;
+ case UTIL_FORMAT_SWIZZLE_0:
+ result |= R300_TX_FORMAT_ZERO << swizzle_shift[i];
+ break;
+ case UTIL_FORMAT_SWIZZLE_1:
+ result |= R300_TX_FORMAT_ONE << swizzle_shift[i];
+ break;
+ default:
+ return ~0; /* Unsupported. */
+ }
+ }
+
+ /* Compressed formats. */
+ if (desc->layout == UTIL_FORMAT_LAYOUT_DXT) {
+ switch (format) {
+ case PIPE_FORMAT_DXT1_RGB:
+ case PIPE_FORMAT_DXT1_RGBA:
+ case PIPE_FORMAT_DXT1_SRGB:
+ case PIPE_FORMAT_DXT1_SRGBA:
+ return R300_TX_FORMAT_DXT1 | result;
+ case PIPE_FORMAT_DXT3_RGBA:
+ case PIPE_FORMAT_DXT3_SRGBA:
+ return R300_TX_FORMAT_DXT3 | result;
+ case PIPE_FORMAT_DXT5_RGBA:
+ case PIPE_FORMAT_DXT5_SRGBA:
+ return R300_TX_FORMAT_DXT5 | result;
+ default:
+ return ~0; /* Unsupported/unknown. */
+ }
+ }
+
+ /* Get the number of components. */
+ for (i = 0; i < 4; i++) {
+ if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
+ ++components;
+ }
+ }
+
+ /* Add sign. */
+ for (i = 0; i < components; i++) {
+ if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
+ result |= sign_bit[i];
+ }
}
- return 0;
+
+ /* See whether the components are of the same size. */
+ for (i = 1; i < components; i++) {
+ uniform = uniform && desc->channel[0].size == desc->channel[i].size;
+ }
+
+ /* Non-uniform formats. */
+ if (!uniform) {
+ switch (components) {
+ case 3:
+ if (desc->channel[0].size == 5 &&
+ desc->channel[1].size == 6 &&
+ desc->channel[2].size == 5) {
+ return R300_TX_FORMAT_Z5Y6X5 | result;
+ }
+ if (desc->channel[0].size == 5 &&
+ desc->channel[1].size == 5 &&
+ desc->channel[2].size == 6) {
+ return R300_TX_FORMAT_Z6Y5X5 | result;
+ }
+ return ~0; /* Unsupported/unknown. */
+
+ case 4:
+ if (desc->channel[0].size == 5 &&
+ desc->channel[1].size == 5 &&
+ desc->channel[2].size == 5 &&
+ desc->channel[3].size == 1) {
+ return R300_TX_FORMAT_W1Z5Y5X5 | result;
+ }
+ if (desc->channel[0].size == 10 &&
+ desc->channel[1].size == 10 &&
+ desc->channel[2].size == 10 &&
+ desc->channel[3].size == 2) {
+ return R300_TX_FORMAT_W2Z10Y10X10 | result;
+ }
+ }
+ return ~0; /* Unsupported/unknown. */
+ }
+
+ /* And finally, uniform formats. */
+ switch (desc->channel[0].type) {
+ case UTIL_FORMAT_TYPE_UNSIGNED:
+ case UTIL_FORMAT_TYPE_SIGNED:
+ if (!desc->channel[0].normalized) {
+ return ~0;
+ }
+
+ switch (desc->channel[0].size) {
+ case 4:
+ switch (components) {
+ case 2:
+ return R300_TX_FORMAT_Y4X4 | result;
+ case 4:
+ return R300_TX_FORMAT_W4Z4Y4X4 | result;
+ }
+ return ~0;
+
+ case 8:
+ switch (components) {
+ case 1:
+ return R300_TX_FORMAT_X8 | result;
+ case 2:
+ return R300_TX_FORMAT_Y8X8 | result;
+ case 4:
+ return R300_TX_FORMAT_W8Z8Y8X8 | result;
+ }
+ return ~0;
+
+ case 16:
+ switch (components) {
+ case 1:
+ return R300_TX_FORMAT_X16 | result;
+ case 2:
+ return R300_TX_FORMAT_Y16X16 | result;
+ case 4:
+ return R300_TX_FORMAT_W16Z16Y16X16 | result;
+ }
+ }
+ return ~0;
+
+/* XXX Enable float textures here. */
+#if 0
+ case UTIL_FORMAT_TYPE_FLOAT:
+ switch (desc->channel[0].size) {
+ case 16:
+ switch (components) {
+ case 1:
+ return R300_TX_FORMAT_16F | result;
+ case 2:
+ return R300_TX_FORMAT_16F_16F | result;
+ case 4:
+ return R300_TX_FORMAT_16F_16F_16F_16F | result;
+ }
+ return ~0;
+
+ case 32:
+ switch (components) {
+ case 1:
+ return R300_TX_FORMAT_32F | result;
+ case 2:
+ return R300_TX_FORMAT_32F_32F | result;
+ case 4:
+ return R300_TX_FORMAT_32F_32F_32F_32F | result;
+ }
+ }
+#endif
+ }
+
+ return ~0; /* Unsupported/unknown. */
}
struct r300_video_surface
projects / mesa.git / commitdiff