* GL_COMPRESSED_SIGNED_R11_EAC
* GL_COMPRESSED_SIGNED_RG11_EAC
* MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1
+ * MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1
*/
#include <stdbool.h>
-#include "mfeatures.h"
#include "texcompress.h"
#include "texcompress_etc.h"
#include "texstore.h"
#include "macros.h"
-#include "swrast/s_context.h"
#include "format_unpack.h"
+
struct etc2_block {
int distance;
uint64_t pixel_indices[2];
return GL_FALSE;
}
-void
-_mesa_fetch_texel_2d_f_etc1_rgb8(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
-{
- struct etc1_block block;
- GLubyte dst[3];
- const GLubyte *src;
-
- src = (const GLubyte *) texImage->Map +
- (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
-
- etc1_parse_block(&block, src);
- etc1_fetch_texel(&block, i % 4, j % 4, dst);
-
- texel[RCOMP] = UBYTE_TO_FLOAT(dst[0]);
- texel[GCOMP] = UBYTE_TO_FLOAT(dst[1]);
- texel[BCOMP] = UBYTE_TO_FLOAT(dst[2]);
- texel[ACOMP] = 1.0f;
-}
/**
* Decode texture data in format `MESA_FORMAT_ETC1_RGB8` to
break;
}
return ((x << 4) | (x & 0xf));
- }
+}
static uint8_t
etc2_base_color2_h_mode(const uint8_t *in, GLuint index)
break;
}
return ((x << 4) | (x & 0xf));
- }
+}
static uint8_t
etc2_base_color_o_planar(const uint8_t *in, GLuint index)
}
}
else if (G_plus_dG < 0 || G_plus_dG > 31){
+ int base_color_1_value, base_color_2_value;
+
/* H mode */
block->is_h_mode = true;
- int base_color_1_value, base_color_2_value;
for(i = 0; i < 3; i++) {
block->base_colors[0][i] = etc2_base_color1_h_mode(src, i);
*/
block->base_colors[0][i] = etc1_base_color_diff_hi(src[i]);
block->base_colors[1][i] = etc1_base_color_diff_lo(src[i]);
- }
+ }
}
if (block->is_ind_mode || block->is_diff_mode) {
}
}
src += bs;
- }
+ }
src_row += src_stride;
- }
+ }
}
static void
}
}
src += bs;
- }
+ }
src_row += src_stride;
- }
+ }
}
static void
}
}
src += bs;
- }
+ }
src_row += src_stride;
- }
+ }
}
static void
}
}
src += bs;
- }
+ }
src_row += src_stride;
- }
+ }
}
static void
}
}
src += bs;
- }
+ }
src_row += src_stride;
- }
+ }
}
static void
}
}
src += bs;
- }
+ }
src_row += src_stride;
- }
+ }
}
static void
}
}
src += bs;
- }
+ }
src_row += src_stride;
- }
+ }
}
static void
}
}
+static void
+etc2_unpack_srgb8_punchthrough_alpha1(uint8_t *dst_row,
+ unsigned dst_stride,
+ const uint8_t *src_row,
+ unsigned src_stride,
+ unsigned width,
+ unsigned height)
+{
+ const unsigned bw = 4, bh = 4, bs = 8, comps = 4;
+ struct etc2_block block;
+ unsigned x, y, i, j;
+ uint8_t tmp;
+
+ for (y = 0; y < height; y += bh) {
+ const uint8_t *src = src_row;
+
+ for (x = 0; x < width; x+= bw) {
+ etc2_rgb8_parse_block(&block, src,
+ true /* punchthrough_alpha */);
+ for (j = 0; j < bh; j++) {
+ uint8_t *dst = dst_row + (y + j) * dst_stride + x * comps;
+ for (i = 0; i < bw; i++) {
+ etc2_rgb8_fetch_texel(&block, i, j, dst,
+ true /* punchthrough_alpha */);
+ /* Convert to MESA_FORMAT_SARGB8 */
+ tmp = dst[0];
+ dst[0] = dst[2];
+ dst[2] = tmp;
+ dst[3] = dst[3];
+
+ dst += comps;
+ }
+ }
+
+ src += bs;
+ }
+
+ src_row += src_stride;
+ }
+}
+
/* ETC2 texture formats are valid in glCompressedTexImage2D and
* glCompressedTexSubImage2D functions */
GLboolean
return GL_FALSE;
}
+GLboolean
+_mesa_texstore_etc2_srgb8_punchthrough_alpha1(TEXSTORE_PARAMS)
+{
+ ASSERT(0);
+
+ return GL_FALSE;
+}
+
+
+/**
+ * Decode texture data in any one of following formats:
+ * `MESA_FORMAT_ETC2_RGB8`
+ * `MESA_FORMAT_ETC2_SRGB8`
+ * `MESA_FORMAT_ETC2_RGBA8_EAC`
+ * `MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC`
+ * `MESA_FORMAT_ETC2_R11_EAC`
+ * `MESA_FORMAT_ETC2_RG11_EAC`
+ * `MESA_FORMAT_ETC2_SIGNED_R11_EAC`
+ * `MESA_FORMAT_ETC2_SIGNED_RG11_EAC`
+ * `MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1`
+ * `MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1`
+ *
+ * The size of the source data must be a multiple of the ETC2 block size
+ * even if the texture image's dimensions are not aligned to 4.
+ *
+ * \param src_width in pixels
+ * \param src_height in pixels
+ * \param dst_stride in bytes
+ */
+
void
-_mesa_fetch_texel_2d_f_etc2_rgb8(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+_mesa_unpack_etc2_format(uint8_t *dst_row,
+ unsigned dst_stride,
+ const uint8_t *src_row,
+ unsigned src_stride,
+ unsigned src_width,
+ unsigned src_height,
+ gl_format format)
+{
+ if (format == MESA_FORMAT_ETC2_RGB8)
+ etc2_unpack_rgb8(dst_row, dst_stride,
+ src_row, src_stride,
+ src_width, src_height);
+ else if (format == MESA_FORMAT_ETC2_SRGB8)
+ etc2_unpack_srgb8(dst_row, dst_stride,
+ src_row, src_stride,
+ src_width, src_height);
+ else if (format == MESA_FORMAT_ETC2_RGBA8_EAC)
+ etc2_unpack_rgba8(dst_row, dst_stride,
+ src_row, src_stride,
+ src_width, src_height);
+ else if (format == MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC)
+ etc2_unpack_srgb8_alpha8(dst_row, dst_stride,
+ src_row, src_stride,
+ src_width, src_height);
+ else if (format == MESA_FORMAT_ETC2_R11_EAC)
+ etc2_unpack_r11(dst_row, dst_stride,
+ src_row, src_stride,
+ src_width, src_height);
+ else if (format == MESA_FORMAT_ETC2_RG11_EAC)
+ etc2_unpack_rg11(dst_row, dst_stride,
+ src_row, src_stride,
+ src_width, src_height);
+ else if (format == MESA_FORMAT_ETC2_SIGNED_R11_EAC)
+ etc2_unpack_signed_r11(dst_row, dst_stride,
+ src_row, src_stride,
+ src_width, src_height);
+ else if (format == MESA_FORMAT_ETC2_SIGNED_RG11_EAC)
+ etc2_unpack_signed_rg11(dst_row, dst_stride,
+ src_row, src_stride,
+ src_width, src_height);
+ else if (format == MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1)
+ etc2_unpack_rgb8_punchthrough_alpha1(dst_row, dst_stride,
+ src_row, src_stride,
+ src_width, src_height);
+ else if (format == MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1)
+ etc2_unpack_srgb8_punchthrough_alpha1(dst_row, dst_stride,
+ src_row, src_stride,
+ src_width, src_height);
+}
+
+
+
+static void
+fetch_etc1_rgb8(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j,
+ GLfloat *texel)
+{
+ struct etc1_block block;
+ GLubyte dst[3];
+ const GLubyte *src;
+
+ src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+
+ etc1_parse_block(&block, src);
+ etc1_fetch_texel(&block, i % 4, j % 4, dst);
+
+ texel[RCOMP] = UBYTE_TO_FLOAT(dst[0]);
+ texel[GCOMP] = UBYTE_TO_FLOAT(dst[1]);
+ texel[BCOMP] = UBYTE_TO_FLOAT(dst[2]);
+ texel[ACOMP] = 1.0f;
+}
+
+
+static void
+fetch_etc2_rgb8(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
struct etc2_block block;
uint8_t dst[3];
const uint8_t *src;
- src = texImage->Map +
- (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+ src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
etc2_rgb8_parse_block(&block, src,
false /* punchthrough_alpha */);
texel[ACOMP] = 1.0f;
}
-void
-_mesa_fetch_texel_2d_f_etc2_srgb8(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_etc2_srgb8(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
struct etc2_block block;
uint8_t dst[3];
const uint8_t *src;
- src = texImage->Map +
- (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+ src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
etc2_rgb8_parse_block(&block, src,
false /* punchthrough_alpha */);
texel[ACOMP] = 1.0f;
}
-void
-_mesa_fetch_texel_2d_f_etc2_rgba8_eac(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_etc2_rgba8_eac(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
struct etc2_block block;
uint8_t dst[4];
const uint8_t *src;
- src = texImage->Map +
- (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
+ src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
etc2_rgba8_parse_block(&block, src);
etc2_rgba8_fetch_texel(&block, i % 4, j % 4, dst);
texel[ACOMP] = UBYTE_TO_FLOAT(dst[3]);
}
-void
-_mesa_fetch_texel_2d_f_etc2_srgb8_alpha8_eac(const struct
- swrast_texture_image *texImage,
- GLint i, GLint j,
- GLint k, GLfloat *texel)
+static void
+fetch_etc2_srgb8_alpha8_eac(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
struct etc2_block block;
uint8_t dst[4];
const uint8_t *src;
- src = texImage->Map +
- (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
+ src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
etc2_rgba8_parse_block(&block, src);
etc2_rgba8_fetch_texel(&block, i % 4, j % 4, dst);
texel[ACOMP] = UBYTE_TO_FLOAT(dst[3]);
}
-void
-_mesa_fetch_texel_2d_f_etc2_r11_eac(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_etc2_r11_eac(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
struct etc2_block block;
GLushort dst;
const uint8_t *src;
- src = texImage->Map +
- (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+ src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
etc2_r11_parse_block(&block, src);
etc2_r11_fetch_texel(&block, i % 4, j % 4, (uint8_t *)&dst);
texel[ACOMP] = 1.0f;
}
-void
-_mesa_fetch_texel_2d_f_etc2_rg11_eac(const struct
- swrast_texture_image *texImage,
- GLint i, GLint j,
- GLint k, GLfloat *texel)
+static void
+fetch_etc2_rg11_eac(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
struct etc2_block block;
GLushort dst[2];
const uint8_t *src;
- src = texImage->Map +
- (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
+ src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
/* red component */
etc2_r11_parse_block(&block, src);
texel[ACOMP] = 1.0f;
}
-void
-_mesa_fetch_texel_2d_f_etc2_signed_r11_eac(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_etc2_signed_r11_eac(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
struct etc2_block block;
GLushort dst;
const uint8_t *src;
- src = texImage->Map +
- (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+ src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
etc2_r11_parse_block(&block, src);
etc2_signed_r11_fetch_texel(&block, i % 4, j % 4, (uint8_t *)&dst);
texel[ACOMP] = 1.0f;
}
-void
-_mesa_fetch_texel_2d_f_etc2_signed_rg11_eac(const struct swrast_texture_image *texImage,
- GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_etc2_signed_rg11_eac(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
{
struct etc2_block block;
GLushort dst[2];
const uint8_t *src;
- src = texImage->Map +
- (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
+ src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
/* red component */
etc2_r11_parse_block(&block, src);
texel[ACOMP] = 1.0f;
}
-void
-_mesa_fetch_texel_2d_f_etc2_rgb8_punchthrough_alpha1(
- const struct swrast_texture_image *texImage,
- GLint i, GLint j,
- GLint k, GLfloat *texel)
+static void
+fetch_etc2_rgb8_punchthrough_alpha1(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j,
+ GLfloat *texel)
{
struct etc2_block block;
uint8_t dst[4];
const uint8_t *src;
- src = texImage->Map +
- (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+ src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
etc2_rgb8_parse_block(&block, src,
true /* punchthrough alpha */);
texel[ACOMP] = UBYTE_TO_FLOAT(dst[3]);
}
-/**
- * Decode texture data in any one of following formats:
- * `MESA_FORMAT_ETC2_RGB8`
- * `MESA_FORMAT_ETC2_SRGB8`
- * `MESA_FORMAT_ETC2_RGBA8_EAC`
- * `MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC`
- * `MESA_FORMAT_ETC2_R11_EAC`
- * `MESA_FORMAT_ETC2_RG11_EAC`
- * `MESA_FORMAT_ETC2_SIGNED_R11_EAC`
- * `MESA_FORMAT_ETC2_SIGNED_RG11_EAC`
- * `MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1`
- *
- * The size of the source data must be a multiple of the ETC2 block size
- * even if the texture image's dimensions are not aligned to 4.
- *
- * \param src_width in pixels
- * \param src_height in pixels
- * \param dst_stride in bytes
- */
+static void
+fetch_etc2_srgb8_punchthrough_alpha1(const GLubyte *map,
+ GLint rowStride,
+ GLint i, GLint j, GLfloat *texel)
+{
+ struct etc2_block block;
+ uint8_t dst[4];
+ const uint8_t *src;
-void
-_mesa_unpack_etc2_format(uint8_t *dst_row,
- unsigned dst_stride,
- const uint8_t *src_row,
- unsigned src_stride,
- unsigned src_width,
- unsigned src_height,
- gl_format format)
+ src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+
+ etc2_rgb8_parse_block(&block, src,
+ true /* punchthrough alpha */);
+ etc2_rgb8_fetch_texel(&block, i % 4, j % 4, dst,
+ true /* punchthrough alpha */);
+ texel[RCOMP] = _mesa_nonlinear_to_linear(dst[0]);
+ texel[GCOMP] = _mesa_nonlinear_to_linear(dst[1]);
+ texel[BCOMP] = _mesa_nonlinear_to_linear(dst[2]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(dst[3]);
+}
+
+
+compressed_fetch_func
+_mesa_get_etc_fetch_func(gl_format format)
{
- if (format == MESA_FORMAT_ETC2_RGB8)
- etc2_unpack_rgb8(dst_row, dst_stride,
- src_row, src_stride,
- src_width, src_height);
- else if (format == MESA_FORMAT_ETC2_SRGB8)
- etc2_unpack_srgb8(dst_row, dst_stride,
- src_row, src_stride,
- src_width, src_height);
- else if (format == MESA_FORMAT_ETC2_RGBA8_EAC)
- etc2_unpack_rgba8(dst_row, dst_stride,
- src_row, src_stride,
- src_width, src_height);
- else if (format == MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC)
- etc2_unpack_srgb8_alpha8(dst_row, dst_stride,
- src_row, src_stride,
- src_width, src_height);
- else if (format == MESA_FORMAT_ETC2_R11_EAC)
- etc2_unpack_r11(dst_row, dst_stride,
- src_row, src_stride,
- src_width, src_height);
- else if (format == MESA_FORMAT_ETC2_RG11_EAC)
- etc2_unpack_rg11(dst_row, dst_stride,
- src_row, src_stride,
- src_width, src_height);
- else if (format == MESA_FORMAT_ETC2_SIGNED_R11_EAC)
- etc2_unpack_signed_r11(dst_row, dst_stride,
- src_row, src_stride,
- src_width, src_height);
- else if (format == MESA_FORMAT_ETC2_SIGNED_RG11_EAC)
- etc2_unpack_signed_rg11(dst_row, dst_stride,
- src_row, src_stride,
- src_width, src_height);
- else if (format == MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1)
- etc2_unpack_rgb8_punchthrough_alpha1(dst_row, dst_stride,
- src_row, src_stride,
- src_width, src_height);
+ switch (format) {
+ case MESA_FORMAT_ETC1_RGB8:
+ return fetch_etc1_rgb8;
+ case MESA_FORMAT_ETC2_RGB8:
+ return fetch_etc2_rgb8;
+ case MESA_FORMAT_ETC2_SRGB8:
+ return fetch_etc2_srgb8;
+ case MESA_FORMAT_ETC2_RGBA8_EAC:
+ return fetch_etc2_rgba8_eac;
+ case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC:
+ return fetch_etc2_srgb8_alpha8_eac;
+ case MESA_FORMAT_ETC2_R11_EAC:
+ return fetch_etc2_r11_eac;
+ case MESA_FORMAT_ETC2_RG11_EAC:
+ return fetch_etc2_rg11_eac;
+ case MESA_FORMAT_ETC2_SIGNED_R11_EAC:
+ return fetch_etc2_signed_r11_eac;
+ case MESA_FORMAT_ETC2_SIGNED_RG11_EAC:
+ return fetch_etc2_signed_rg11_eac;
+ case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1:
+ return fetch_etc2_rgb8_punchthrough_alpha1;
+ case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1:
+ return fetch_etc2_srgb8_punchthrough_alpha1;
+ default:
+ return NULL;
+ }
}
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