diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_texture.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_texture.c | 70 |
1 files changed, 46 insertions, 24 deletions
diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c index 22ccadfe3d..e0dee44b54 100644 --- a/src/gallium/drivers/r300/r300_texture.c +++ b/src/gallium/drivers/r300/r300_texture.c @@ -33,6 +33,9 @@ #include "r300_state_inlines.h" #include "r300_winsys.h" +/* XXX Enable float textures here. */ +/*#define ENABLE_FLOAT_TEXTURES*/ + #define TILE_WIDTH 0 #define TILE_HEIGHT 1 @@ -73,7 +76,7 @@ static uint32_t r300_translate_texformat(enum pipe_format format) { uint32_t result = 0; const struct util_format_description *desc; - unsigned components = 0, i; + unsigned i; boolean uniform = TRUE; const uint32_t swizzle_shift[4] = { R300_TX_FORMAT_R_SHIFT, @@ -104,7 +107,7 @@ static uint32_t r300_translate_texformat(enum pipe_format format) case PIPE_FORMAT_Z16_UNORM: return R300_EASY_TX_FORMAT(X, X, X, X, X16); case PIPE_FORMAT_X8Z24_UNORM: - case PIPE_FORMAT_S8Z24_UNORM: + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: return R300_EASY_TX_FORMAT(X, X, X, X, W24_FP); default: return ~0; /* Unsupported. */ @@ -158,7 +161,7 @@ static uint32_t r300_translate_texformat(enum pipe_format format) } } - /* Compressed formats. */ + /* S3TC formats. */ if (desc->layout == UTIL_FORMAT_LAYOUT_S3TC) { switch (format) { case PIPE_FORMAT_DXT1_RGB: @@ -177,28 +180,35 @@ static uint32_t r300_translate_texformat(enum pipe_format format) } } - /* 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++) { + for (i = 0; i < desc->nr_channels; i++) { if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) { result |= sign_bit[i]; } } + /* RGTC formats. */ + if (desc->layout == UTIL_FORMAT_LAYOUT_RGTC) { + switch (format) { + case PIPE_FORMAT_RGTC1_UNORM: + case PIPE_FORMAT_RGTC1_SNORM: + return R500_TX_FORMAT_ATI1N | result; + case PIPE_FORMAT_RGTC2_UNORM: + case PIPE_FORMAT_RGTC2_SNORM: + return R400_TX_FORMAT_ATI2N | result; + default: + return ~0; /* Unsupported/unknown. */ + } + } + /* See whether the components are of the same size. */ - for (i = 1; i < components; i++) { + for (i = 1; i < desc->nr_channels; i++) { uniform = uniform && desc->channel[0].size == desc->channel[i].size; } /* Non-uniform formats. */ if (!uniform) { - switch (components) { + switch (desc->nr_channels) { case 3: if (desc->channel[0].size == 5 && desc->channel[1].size == 6 && @@ -240,7 +250,7 @@ static uint32_t r300_translate_texformat(enum pipe_format format) switch (desc->channel[0].size) { case 4: - switch (components) { + switch (desc->nr_channels) { case 2: return R300_TX_FORMAT_Y4X4 | result; case 4: @@ -249,7 +259,7 @@ static uint32_t r300_translate_texformat(enum pipe_format format) return ~0; case 8: - switch (components) { + switch (desc->nr_channels) { case 1: return R300_TX_FORMAT_X8 | result; case 2: @@ -260,7 +270,7 @@ static uint32_t r300_translate_texformat(enum pipe_format format) return ~0; case 16: - switch (components) { + switch (desc->nr_channels) { case 1: return R300_TX_FORMAT_X16 | result; case 2: @@ -271,12 +281,11 @@ static uint32_t r300_translate_texformat(enum pipe_format format) } return ~0; -/* XXX Enable float textures here. */ -#if 0 +#if defined(ENABLE_FLOAT_TEXTURES) case UTIL_FORMAT_TYPE_FLOAT: switch (desc->channel[0].size) { case 16: - switch (components) { + switch (desc->nr_channels) { case 1: return R300_TX_FORMAT_16F | result; case 2: @@ -287,7 +296,7 @@ static uint32_t r300_translate_texformat(enum pipe_format format) return ~0; case 32: - switch (components) { + switch (desc->nr_channels) { case 1: return R300_TX_FORMAT_32F | result; case 2: @@ -302,6 +311,17 @@ static uint32_t r300_translate_texformat(enum pipe_format format) return ~0; /* Unsupported/unknown. */ } +static uint32_t r500_tx_format_msb_bit(enum pipe_format format) +{ + switch (format) { + case PIPE_FORMAT_RGTC1_UNORM: + case PIPE_FORMAT_RGTC1_SNORM: + return R500_TXFORMAT_MSB; + default: + return 0; + } +} + /* Buffer formats. */ /* Colorbuffer formats. This is the unswizzled format of the RB3D block's @@ -342,12 +362,13 @@ static uint32_t r300_translate_colorformat(enum pipe_format format) /* 64-bit buffers. */ case PIPE_FORMAT_R16G16B16A16_UNORM: case PIPE_FORMAT_R16G16B16A16_SNORM: - //case PIPE_FORMAT_R16G16B16A16_FLOAT: /* not in pipe_format */ +#if defined(ENABLE_FLOAT_TEXTURES) + case PIPE_FORMAT_R16G16B16A16_FLOAT: +#endif return R300_COLOR_FORMAT_ARGB16161616; -/* XXX Enable float textures here. */ -#if 0 /* 128-bit buffers. */ +#if defined(ENABLE_FLOAT_TEXTURES) case PIPE_FORMAT_R32G32B32A32_FLOAT: return R300_COLOR_FORMAT_ARGB32323232; #endif @@ -372,7 +393,7 @@ static uint32_t r300_translate_zsformat(enum pipe_format format) /* 24-bit depth, ignored stencil */ case PIPE_FORMAT_X8Z24_UNORM: /* 24-bit depth, 8-bit stencil */ - case PIPE_FORMAT_S8Z24_UNORM: + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: return R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL; default: return ~0; /* Unsupported. */ @@ -527,6 +548,7 @@ static void r300_setup_texture_state(struct r300_screen* screen, struct r300_tex if (pt->height0 > 2048) { state->format2 |= R500_TXHEIGHT_BIT11; } + state->format2 |= r500_tx_format_msb_bit(pt->format); } SCREEN_DBG(screen, DBG_TEX, "r300: Set texture state (%dx%d, %d levels)\n", |