diff options
Diffstat (limited to 'src/mesa/main/texstore.c')
| -rw-r--r-- | src/mesa/main/texstore.c | 1121 |
1 files changed, 7 insertions, 1114 deletions
diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c index 9c63b7e4ba..72ff73ef05 100644 --- a/src/mesa/main/texstore.c +++ b/src/mesa/main/texstore.c @@ -58,6 +58,7 @@ #include "convolve.h" #include "image.h" #include "macros.h" +#include "mipmap.h" #include "imports.h" #include "texcompress.h" #include "texformat.h" @@ -2719,8 +2720,8 @@ _mesa_unmap_teximage_pbo(GLcontext *ctx, * Adaptor for fetching a GLchan texel from a float-valued texture. */ static void -FetchTexelFloatToChan( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texelOut ) +fetch_texel_float_to_chan(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLchan *texelOut) { GLfloat temp[4]; ASSERT(texImage->FetchTexelf); @@ -2744,8 +2745,8 @@ FetchTexelFloatToChan( const struct gl_texture_image *texImage, * Adaptor for fetching a float texel from a GLchan-valued texture. */ static void -FetchTexelChanToFloat( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texelOut ) +fetch_texel_chan_to_float(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texelOut) { GLchan temp[4]; ASSERT(texImage->FetchTexelc); @@ -2793,10 +2794,10 @@ set_fetch_functions(struct gl_texture_image *texImage, GLuint dims) /* now check if we need to use a float/chan adaptor */ if (!texImage->FetchTexelc) { - texImage->FetchTexelc = FetchTexelFloatToChan; + texImage->FetchTexelc = fetch_texel_float_to_chan; } else if (!texImage->FetchTexelf) { - texImage->FetchTexelf = FetchTexelChanToFloat; + texImage->FetchTexelf = fetch_texel_chan_to_float; } @@ -3452,1114 +3453,6 @@ _mesa_store_compressed_texsubimage3d(GLcontext *ctx, GLenum target, } -/* - * Average together two rows of a source image to produce a single new - * row in the dest image. It's legal for the two source rows to point - * to the same data. The source width must be equal to either the - * dest width or two times the dest width. - */ -static void -do_row(const struct gl_texture_format *format, GLint srcWidth, - const GLvoid *srcRowA, const GLvoid *srcRowB, - GLint dstWidth, GLvoid *dstRow) -{ - const GLuint k0 = (srcWidth == dstWidth) ? 0 : 1; - const GLuint colStride = (srcWidth == dstWidth) ? 1 : 2; - - /* This assertion is no longer valid with non-power-of-2 textures - assert(srcWidth == dstWidth || srcWidth == 2 * dstWidth); - */ - - switch (format->MesaFormat) { - case MESA_FORMAT_RGBA: - { - GLuint i, j, k; - const GLchan (*rowA)[4] = (const GLchan (*)[4]) srcRowA; - const GLchan (*rowB)[4] = (const GLchan (*)[4]) srcRowB; - GLchan (*dst)[4] = (GLchan (*)[4]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + - rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + - rowB[j][1] + rowB[k][1]) / 4; - dst[i][2] = (rowA[j][2] + rowA[k][2] + - rowB[j][2] + rowB[k][2]) / 4; - dst[i][3] = (rowA[j][3] + rowA[k][3] + - rowB[j][3] + rowB[k][3]) / 4; - } - } - return; - case MESA_FORMAT_RGB: - { - GLuint i, j, k; - const GLchan (*rowA)[3] = (const GLchan (*)[3]) srcRowA; - const GLchan (*rowB)[3] = (const GLchan (*)[3]) srcRowB; - GLchan (*dst)[3] = (GLchan (*)[3]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + - rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + - rowB[j][1] + rowB[k][1]) / 4; - dst[i][2] = (rowA[j][2] + rowA[k][2] + - rowB[j][2] + rowB[k][2]) / 4; - } - } - return; - case MESA_FORMAT_ALPHA: - case MESA_FORMAT_LUMINANCE: - case MESA_FORMAT_INTENSITY: - { - GLuint i, j, k; - const GLchan *rowA = (const GLchan *) srcRowA; - const GLchan *rowB = (const GLchan *) srcRowB; - GLchan *dst = (GLchan *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4; - } - } - return; - case MESA_FORMAT_LUMINANCE_ALPHA: - { - GLuint i, j, k; - const GLchan (*rowA)[2] = (const GLchan (*)[2]) srcRowA; - const GLchan (*rowB)[2] = (const GLchan (*)[2]) srcRowB; - GLchan (*dst)[2] = (GLchan (*)[2]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + - rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + - rowB[j][1] + rowB[k][1]) / 4; - } - } - return; - case MESA_FORMAT_Z32: - { - GLuint i, j, k; - const GLuint *rowA = (const GLuint *) srcRowA; - const GLuint *rowB = (const GLuint *) srcRowB; - GLfloat *dst = (GLfloat *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i] = rowA[j] / 4 + rowA[k] / 4 + rowB[j] / 4 + rowB[k] / 4; - } - } - return; - case MESA_FORMAT_Z16: - { - GLuint i, j, k; - const GLushort *rowA = (const GLushort *) srcRowA; - const GLushort *rowB = (const GLushort *) srcRowB; - GLushort *dst = (GLushort *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4; - } - } - return; - /* Begin hardware formats */ - case MESA_FORMAT_RGBA8888: - case MESA_FORMAT_RGBA8888_REV: - case MESA_FORMAT_ARGB8888: - case MESA_FORMAT_ARGB8888_REV: -#if FEATURE_EXT_texture_sRGB - case MESA_FORMAT_SRGBA8: -#endif - { - GLuint i, j, k; - const GLubyte (*rowA)[4] = (const GLubyte (*)[4]) srcRowA; - const GLubyte (*rowB)[4] = (const GLubyte (*)[4]) srcRowB; - GLubyte (*dst)[4] = (GLubyte (*)[4]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + - rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + - rowB[j][1] + rowB[k][1]) / 4; - dst[i][2] = (rowA[j][2] + rowA[k][2] + - rowB[j][2] + rowB[k][2]) / 4; - dst[i][3] = (rowA[j][3] + rowA[k][3] + - rowB[j][3] + rowB[k][3]) / 4; - } - } - return; - case MESA_FORMAT_RGB888: - case MESA_FORMAT_BGR888: -#if FEATURE_EXT_texture_sRGB - case MESA_FORMAT_SRGB8: -#endif - { - GLuint i, j, k; - const GLubyte (*rowA)[3] = (const GLubyte (*)[3]) srcRowA; - const GLubyte (*rowB)[3] = (const GLubyte (*)[3]) srcRowB; - GLubyte (*dst)[3] = (GLubyte (*)[3]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + - rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + - rowB[j][1] + rowB[k][1]) / 4; - dst[i][2] = (rowA[j][2] + rowA[k][2] + - rowB[j][2] + rowB[k][2]) / 4; - } - } - return; - case MESA_FORMAT_RGB565: - case MESA_FORMAT_RGB565_REV: - { - GLuint i, j, k; - const GLushort *rowA = (const GLushort *) srcRowA; - const GLushort *rowB = (const GLushort *) srcRowB; - GLushort *dst = (GLushort *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0x1f; - const GLint rowAr1 = rowA[k] & 0x1f; - const GLint rowBr0 = rowB[j] & 0x1f; - const GLint rowBr1 = rowB[k] & 0x1f; - const GLint rowAg0 = (rowA[j] >> 5) & 0x3f; - const GLint rowAg1 = (rowA[k] >> 5) & 0x3f; - const GLint rowBg0 = (rowB[j] >> 5) & 0x3f; - const GLint rowBg1 = (rowB[k] >> 5) & 0x3f; - const GLint rowAb0 = (rowA[j] >> 11) & 0x1f; - const GLint rowAb1 = (rowA[k] >> 11) & 0x1f; - const GLint rowBb0 = (rowB[j] >> 11) & 0x1f; - const GLint rowBb1 = (rowB[k] >> 11) & 0x1f; - const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; - const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; - const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; - dst[i] = (blue << 11) | (green << 5) | red; - } - } - return; - case MESA_FORMAT_ARGB4444: - case MESA_FORMAT_ARGB4444_REV: - { - GLuint i, j, k; - const GLushort *rowA = (const GLushort *) srcRowA; - const GLushort *rowB = (const GLushort *) srcRowB; - GLushort *dst = (GLushort *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0xf; - const GLint rowAr1 = rowA[k] & 0xf; - const GLint rowBr0 = rowB[j] & 0xf; - const GLint rowBr1 = rowB[k] & 0xf; - const GLint rowAg0 = (rowA[j] >> 4) & 0xf; - const GLint rowAg1 = (rowA[k] >> 4) & 0xf; - const GLint rowBg0 = (rowB[j] >> 4) & 0xf; - const GLint rowBg1 = (rowB[k] >> 4) & 0xf; - const GLint rowAb0 = (rowA[j] >> 8) & 0xf; - const GLint rowAb1 = (rowA[k] >> 8) & 0xf; - const GLint rowBb0 = (rowB[j] >> 8) & 0xf; - const GLint rowBb1 = (rowB[k] >> 8) & 0xf; - const GLint rowAa0 = (rowA[j] >> 12) & 0xf; - const GLint rowAa1 = (rowA[k] >> 12) & 0xf; - const GLint rowBa0 = (rowB[j] >> 12) & 0xf; - const GLint rowBa1 = (rowB[k] >> 12) & 0xf; - const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; - const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; - const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; - const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2; - dst[i] = (alpha << 12) | (blue << 8) | (green << 4) | red; - } - } - return; - case MESA_FORMAT_ARGB1555: - case MESA_FORMAT_ARGB1555_REV: /* XXX broken? */ - { - GLuint i, j, k; - const GLushort *rowA = (const GLushort *) srcRowA; - const GLushort *rowB = (const GLushort *) srcRowB; - GLushort *dst = (GLushort *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0x1f; - const GLint rowAr1 = rowA[k] & 0x1f; - const GLint rowBr0 = rowB[j] & 0x1f; - const GLint rowBr1 = rowB[k] & 0xf; - const GLint rowAg0 = (rowA[j] >> 5) & 0x1f; - const GLint rowAg1 = (rowA[k] >> 5) & 0x1f; - const GLint rowBg0 = (rowB[j] >> 5) & 0x1f; - const GLint rowBg1 = (rowB[k] >> 5) & 0x1f; - const GLint rowAb0 = (rowA[j] >> 10) & 0x1f; - const GLint rowAb1 = (rowA[k] >> 10) & 0x1f; - const GLint rowBb0 = (rowB[j] >> 10) & 0x1f; - const GLint rowBb1 = (rowB[k] >> 10) & 0x1f; - const GLint rowAa0 = (rowA[j] >> 15) & 0x1; - const GLint rowAa1 = (rowA[k] >> 15) & 0x1; - const GLint rowBa0 = (rowB[j] >> 15) & 0x1; - const GLint rowBa1 = (rowB[k] >> 15) & 0x1; - const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; - const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; - const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; - const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2; - dst[i] = (alpha << 15) | (blue << 10) | (green << 5) | red; - } - } - return; - case MESA_FORMAT_AL88: - case MESA_FORMAT_AL88_REV: -#if FEATURE_EXT_texture_sRGB - case MESA_FORMAT_SLA8: -#endif - { - GLuint i, j, k; - const GLubyte (*rowA)[2] = (const GLubyte (*)[2]) srcRowA; - const GLubyte (*rowB)[2] = (const GLubyte (*)[2]) srcRowB; - GLubyte (*dst)[2] = (GLubyte (*)[2]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + - rowB[j][0] + rowB[k][0]) >> 2; - dst[i][1] = (rowA[j][1] + rowA[k][1] + - rowB[j][1] + rowB[k][1]) >> 2; - } - } - return; - case MESA_FORMAT_RGB332: - { - GLuint i, j, k; - const GLubyte *rowA = (const GLubyte *) srcRowA; - const GLubyte *rowB = (const GLubyte *) srcRowB; - GLubyte *dst = (GLubyte *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0x3; - const GLint rowAr1 = rowA[k] & 0x3; - const GLint rowBr0 = rowB[j] & 0x3; - const GLint rowBr1 = rowB[k] & 0x3; - const GLint rowAg0 = (rowA[j] >> 2) & 0x7; - const GLint rowAg1 = (rowA[k] >> 2) & 0x7; - const GLint rowBg0 = (rowB[j] >> 2) & 0x7; - const GLint rowBg1 = (rowB[k] >> 2) & 0x7; - const GLint rowAb0 = (rowA[j] >> 5) & 0x7; - const GLint rowAb1 = (rowA[k] >> 5) & 0x7; - const GLint rowBb0 = (rowB[j] >> 5) & 0x7; - const GLint rowBb1 = (rowB[k] >> 5) & 0x7; - const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; - const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; - const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; - dst[i] = (blue << 5) | (green << 2) | red; - } - } - return; - case MESA_FORMAT_A8: - case MESA_FORMAT_L8: - case MESA_FORMAT_I8: - case MESA_FORMAT_CI8: -#if FEATURE_EXT_texture_sRGB - case MESA_FORMAT_SL8: -#endif - { - GLuint i, j, k; - const GLubyte *rowA = (const GLubyte *) srcRowA; - const GLubyte *rowB = (const GLubyte *) srcRowB; - GLubyte *dst = (GLubyte *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) >> 2; - } - } - return; - case MESA_FORMAT_RGBA_FLOAT32: - { - GLuint i, j, k; - const GLfloat (*rowA)[4] = (const GLfloat (*)[4]) srcRowA; - const GLfloat (*rowB)[4] = (const GLfloat (*)[4]) srcRowB; - GLfloat (*dst)[4] = (GLfloat (*)[4]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + - rowB[j][0] + rowB[k][0]) * 0.25F; - dst[i][1] = (rowA[j][1] + rowA[k][1] + - rowB[j][1] + rowB[k][1]) * 0.25F; - dst[i][2] = (rowA[j][2] + rowA[k][2] + - rowB[j][2] + rowB[k][2]) * 0.25F; - dst[i][3] = (rowA[j][3] + rowA[k][3] + - rowB[j][3] + rowB[k][3]) * 0.25F; - } - } - return; - case MESA_FORMAT_RGBA_FLOAT16: - { - GLuint i, j, k, comp; - const GLhalfARB (*rowA)[4] = (const GLhalfARB (*)[4]) srcRowA; - const GLhalfARB (*rowB)[4] = (const GLhalfARB (*)[4]) srcRowB; - GLhalfARB (*dst)[4] = (GLhalfARB (*)[4]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - for (comp = 0; comp < 4; comp++) { - GLfloat aj, ak, bj, bk; - aj = _mesa_half_to_float(rowA[j][comp]); - ak = _mesa_half_to_float(rowA[k][comp]); - bj = _mesa_half_to_float(rowB[j][comp]); - bk = _mesa_half_to_float(rowB[k][comp]); - dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F); - } - } - } - return; - case MESA_FORMAT_RGB_FLOAT32: - { - GLuint i, j, k; - const GLfloat (*rowA)[3] = (const GLfloat (*)[3]) srcRowA; - const GLfloat (*rowB)[3] = (const GLfloat (*)[3]) srcRowB; - GLfloat (*dst)[3] = (GLfloat (*)[3]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + - rowB[j][0] + rowB[k][0]) * 0.25F; - dst[i][1] = (rowA[j][1] + rowA[k][1] + - rowB[j][1] + rowB[k][1]) * 0.25F; - dst[i][2] = (rowA[j][2] + rowA[k][2] + - rowB[j][2] + rowB[k][2]) * 0.25F; - } - } - return; - case MESA_FORMAT_RGB_FLOAT16: - { - GLuint i, j, k, comp; - const GLhalfARB (*rowA)[3] = (const GLhalfARB (*)[3]) srcRowA; - const GLhalfARB (*rowB)[3] = (const GLhalfARB (*)[3]) srcRowB; - GLhalfARB (*dst)[3] = (GLhalfARB (*)[3]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - for (comp = 0; comp < 3; comp++) { - GLfloat aj, ak, bj, bk; - aj = _mesa_half_to_float(rowA[j][comp]); - ak = _mesa_half_to_float(rowA[k][comp]); - bj = _mesa_half_to_float(rowB[j][comp]); - bk = _mesa_half_to_float(rowB[k][comp]); - dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F); - } - } - } - return; - case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32: - { - GLuint i, j, k; - const GLfloat (*rowA)[2] = (const GLfloat (*)[2]) srcRowA; - const GLfloat (*rowB)[2] = (const GLfloat (*)[2]) srcRowB; - GLfloat (*dst)[2] = (GLfloat (*)[2]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + - rowB[j][0] + rowB[k][0]) * 0.25F; - dst[i][1] = (rowA[j][1] + rowA[k][1] + - rowB[j][1] + rowB[k][1]) * 0.25F; - } - } - return; - case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16: - { - GLuint i, j, k, comp; - const GLhalfARB (*rowA)[2] = (const GLhalfARB (*)[2]) srcRowA; - const GLhalfARB (*rowB)[2] = (const GLhalfARB (*)[2]) srcRowB; - GLhalfARB (*dst)[2] = (GLhalfARB (*)[2]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - for (comp = 0; comp < 2; comp++) { - GLfloat aj, ak, bj, bk; - aj = _mesa_half_to_float(rowA[j][comp]); - ak = _mesa_half_to_float(rowA[k][comp]); - bj = _mesa_half_to_float(rowB[j][comp]); - bk = _mesa_half_to_float(rowB[k][comp]); - dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F); - } - } - } - return; - case MESA_FORMAT_ALPHA_FLOAT32: - case MESA_FORMAT_LUMINANCE_FLOAT32: - case MESA_FORMAT_INTENSITY_FLOAT32: - { - GLuint i, j, k; - const GLfloat *rowA = (const GLfloat *) srcRowA; - const GLfloat *rowB = (const GLfloat *) srcRowB; - GLfloat *dst = (GLfloat *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) * 0.25F; - } - } - return; - case MESA_FORMAT_ALPHA_FLOAT16: - case MESA_FORMAT_LUMINANCE_FLOAT16: - case MESA_FORMAT_INTENSITY_FLOAT16: - { - GLuint i, j, k; - const GLhalfARB *rowA = (const GLhalfARB *) srcRowA; - const GLhalfARB *rowB = (const GLhalfARB *) srcRowB; - GLhalfARB *dst = (GLhalfARB *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - GLfloat aj, ak, bj, bk; - aj = _mesa_half_to_float(rowA[j]); - ak = _mesa_half_to_float(rowA[k]); - bj = _mesa_half_to_float(rowB[j]); - bk = _mesa_half_to_float(rowB[k]); - dst[i] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F); - } - } - return; - - default: - _mesa_problem(NULL, "bad format in do_row()"); - } -} - - -/* - * These functions generate a 1/2-size mipmap image from a source image. - * Texture borders are handled by copying or averaging the source image's - * border texels, depending on the scale-down factor. - */ - -static void -make_1d_mipmap(const struct gl_texture_format *format, GLint border, - GLint srcWidth, const GLubyte *srcPtr, - GLint dstWidth, GLubyte *dstPtr) -{ - const GLint bpt = format->TexelBytes; - const GLubyte *src; - GLubyte *dst; - - /* skip the border pixel, if any */ - src = srcPtr + border * bpt; - dst = dstPtr + border * bpt; - - /* we just duplicate the input row, kind of hack, saves code */ - do_row(format, srcWidth - 2 * border, src, src, - dstWidth - 2 * border, dst); - - if (border) { - /* copy left-most pixel from source */ - MEMCPY(dstPtr, srcPtr, bpt); - /* copy right-most pixel from source */ - MEMCPY(dstPtr + (dstWidth - 1) * bpt, - srcPtr + (srcWidth - 1) * bpt, - bpt); - } -} - - -/** - * XXX need to use the tex image's row stride! - */ -static void -make_2d_mipmap(const struct gl_texture_format *format, GLint border, - GLint srcWidth, GLint srcHeight, const GLubyte *srcPtr, - GLint dstWidth, GLint dstHeight, GLubyte *dstPtr) -{ - const GLint bpt = format->TexelBytes; - const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */ - const GLint dstWidthNB = dstWidth - 2 * border; - const GLint dstHeightNB = dstHeight - 2 * border; - const GLint srcRowStride = bpt * srcWidth; - const GLint dstRowStride = bpt * dstWidth; - const GLubyte *srcA, *srcB; - GLubyte *dst; - GLint row; - - /* Compute src and dst pointers, skipping any border */ - srcA = srcPtr + border * ((srcWidth + 1) * bpt); - if (srcHeight > 1) - srcB = srcA + srcRowStride; - else - srcB = srcA; - dst = dstPtr + border * ((dstWidth + 1) * bpt); - - for (row = 0; row < dstHeightNB; row++) { - do_row(format, srcWidthNB, srcA, srcB, - dstWidthNB, dst); - srcA += 2 * srcRowStride; - srcB += 2 * srcRowStride; - dst += dstRowStride; - } - - /* This is ugly but probably won't be used much */ - if (border > 0) { - /* fill in dest border */ - /* lower-left border pixel */ - MEMCPY(dstPtr, srcPtr, bpt); - /* lower-right border pixel */ - MEMCPY(dstPtr + (dstWidth - 1) * bpt, - srcPtr + (srcWidth - 1) * bpt, bpt); - /* upper-left border pixel */ - MEMCPY(dstPtr + dstWidth * (dstHeight - 1) * bpt, - srcPtr + srcWidth * (srcHeight - 1) * bpt, bpt); - /* upper-right border pixel */ - MEMCPY(dstPtr + (dstWidth * dstHeight - 1) * bpt, - srcPtr + (srcWidth * srcHeight - 1) * bpt, bpt); - /* lower border */ - do_row(format, srcWidthNB, - srcPtr + bpt, - srcPtr + bpt, - dstWidthNB, dstPtr + bpt); - /* upper border */ - do_row(format, srcWidthNB, - srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt, - srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt, - dstWidthNB, - dstPtr + (dstWidth * (dstHeight - 1) + 1) * bpt); - /* left and right borders */ - if (srcHeight == dstHeight) { - /* copy border pixel from src to dst */ - for (row = 1; row < srcHeight; row++) { - MEMCPY(dstPtr + dstWidth * row * bpt, - srcPtr + srcWidth * row * bpt, bpt); - MEMCPY(dstPtr + (dstWidth * row + dstWidth - 1) * bpt, - srcPtr + (srcWidth * row + srcWidth - 1) * bpt, bpt); - } - } - else { - /* average two src pixels each dest pixel */ - for (row = 0; row < dstHeightNB; row += 2) { - do_row(format, 1, - srcPtr + (srcWidth * (row * 2 + 1)) * bpt, - srcPtr + (srcWidth * (row * 2 + 2)) * bpt, - 1, dstPtr + (dstWidth * row + 1) * bpt); - do_row(format, 1, - srcPtr + (srcWidth * (row * 2 + 1) + srcWidth - 1) * bpt, - srcPtr + (srcWidth * (row * 2 + 2) + srcWidth - 1) * bpt, - 1, dstPtr + (dstWidth * row + 1 + dstWidth - 1) * bpt); - } - } - } -} - - -static void -make_3d_mipmap(const struct gl_texture_format *format, GLint border, - GLint srcWidth, GLint srcHeight, GLint srcDepth, - const GLubyte *srcPtr, - GLint dstWidth, GLint dstHeight, GLint dstDepth, - GLubyte *dstPtr) -{ - const GLint bpt = format->TexelBytes; - const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */ - const GLint srcDepthNB = srcDepth - 2 * border; - const GLint dstWidthNB = dstWidth - 2 * border; - const GLint dstHeightNB = dstHeight - 2 * border; - const GLint dstDepthNB = dstDepth - 2 * border; - GLvoid *tmpRowA, *tmpRowB; - GLint img, row; - GLint bytesPerSrcImage, bytesPerDstImage; - GLint bytesPerSrcRow, bytesPerDstRow; - GLint srcImageOffset, srcRowOffset; - - (void) srcDepthNB; /* silence warnings */ - - /* Need two temporary row buffers */ - tmpRowA = _mesa_malloc(srcWidth * bpt); - if (!tmpRowA) - return; - tmpRowB = _mesa_malloc(srcWidth * bpt); - if (!tmpRowB) { - _mesa_free(tmpRowA); - return; - } - - bytesPerSrcImage = srcWidth * srcHeight * bpt; - bytesPerDstImage = dstWidth * dstHeight * bpt; - - bytesPerSrcRow = srcWidth * bpt; - bytesPerDstRow = dstWidth * bpt; - - /* Offset between adjacent src images to be averaged together */ - srcImageOffset = (srcDepth == dstDepth) ? 0 : bytesPerSrcImage; - - /* Offset between adjacent src rows to be averaged together */ - srcRowOffset = (srcHeight == dstHeight) ? 0 : srcWidth * bpt; - - /* - * Need to average together up to 8 src pixels for each dest pixel. - * Break that down into 3 operations: - * 1. take two rows from source image and average them together. - * 2. take two rows from next source image and average them together. - * 3. take the two averaged rows and average them for the final dst row. - */ - - /* - _mesa_printf("mip3d %d x %d x %d -> %d x %d x %d\n", - srcWidth, srcHeight, srcDepth, dstWidth, dstHeight, dstDepth); - */ - - for (img = 0; img < dstDepthNB; img++) { - /* first source image pointer, skipping border */ - const GLubyte *imgSrcA = srcPtr - + (bytesPerSrcImage + bytesPerSrcRow + border) * bpt * border - + img * (bytesPerSrcImage + srcImageOffset); - /* second source image pointer, skipping border */ - const GLubyte *imgSrcB = imgSrcA + srcImageOffset; - /* address of the dest image, skipping border */ - GLubyte *imgDst = dstPtr - + (bytesPerDstImage + bytesPerDstRow + border) * bpt * border - + img * bytesPerDstImage; - - /* setup the four source row pointers and the dest row pointer */ - const GLubyte *srcImgARowA = imgSrcA; - const GLubyte *srcImgARowB = imgSrcA + srcRowOffset; - const GLubyte *srcImgBRowA = imgSrcB; - const GLubyte *srcImgBRowB = imgSrcB + srcRowOffset; - GLubyte *dstImgRow = imgDst; - - for (row = 0; row < dstHeightNB; row++) { - /* Average together two rows from first src image */ - do_row(format, srcWidthNB, srcImgARowA, srcImgARowB, - srcWidthNB, tmpRowA); - /* Average together two rows from second src image */ - do_row(format, srcWidthNB, srcImgBRowA, srcImgBRowB, - srcWidthNB, tmpRowB); - /* Average together the temp rows to make the final row */ - do_row(format, srcWidthNB, tmpRowA, tmpRowB, - dstWidthNB, dstImgRow); - /* advance to next rows */ - srcImgARowA += bytesPerSrcRow + srcRowOffset; - srcImgARowB += bytesPerSrcRow + srcRowOffset; - srcImgBRowA += bytesPerSrcRow + srcRowOffset; - srcImgBRowB += bytesPerSrcRow + srcRowOffset; - dstImgRow += bytesPerDstRow; - } - } - - _mesa_free(tmpRowA); - _mesa_free(tmpRowB); - - /* Luckily we can leverage the make_2d_mipmap() function here! */ - if (border > 0) { - /* do front border image */ - make_2d_mipmap(format, 1, srcWidth, srcHeight, srcPtr, - dstWidth, dstHeight, dstPtr); - /* do back border image */ - make_2d_mipmap(format, 1, srcWidth, srcHeight, - srcPtr + bytesPerSrcImage * (srcDepth - 1), - dstWidth, dstHeight, - dstPtr + bytesPerDstImage * (dstDepth - 1)); - /* do four remaining border edges that span the image slices */ - if (srcDepth == dstDepth) { - /* just copy border pixels from src to dst */ - for (img = 0; img < dstDepthNB; img++) { - const GLubyte *src; - GLubyte *dst; - - /* do border along [img][row=0][col=0] */ - src = srcPtr + (img + 1) * bytesPerSrcImage; - dst = dstPtr + (img + 1) * bytesPerDstImage; - MEMCPY(dst, src, bpt); - - /* do border along [img][row=dstHeight-1][col=0] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage - + (srcHeight - 1) * bytesPerSrcRow; - dst = dstPtr + (img + 1) * bytesPerDstImage - + (dstHeight - 1) * bytesPerDstRow; - MEMCPY(dst, src, bpt); - - /* do border along [img][row=0][col=dstWidth-1] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage - + (srcWidth - 1) * bpt; - dst = dstPtr + (img + 1) * bytesPerDstImage - + (dstWidth - 1) * bpt; - MEMCPY(dst, src, bpt); - - /* do border along [img][row=dstHeight-1][col=dstWidth-1] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage - + (bytesPerSrcImage - bpt); - dst = dstPtr + (img + 1) * bytesPerDstImage - + (bytesPerDstImage - bpt); - MEMCPY(dst, src, bpt); - } - } - else { - /* average border pixels from adjacent src image pairs */ - ASSERT(srcDepthNB == 2 * dstDepthNB); - for (img = 0; img < dstDepthNB; img++) { - const GLubyte *src; - GLubyte *dst; - - /* do border along [img][row=0][col=0] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage; - dst = dstPtr + (img + 1) * bytesPerDstImage; - do_row(format, 1, src, src + srcImageOffset, 1, dst); - - /* do border along [img][row=dstHeight-1][col=0] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage - + (srcHeight - 1) * bytesPerSrcRow; - dst = dstPtr + (img + 1) * bytesPerDstImage - + (dstHeight - 1) * bytesPerDstRow; - do_row(format, 1, src, src + srcImageOffset, 1, dst); - - /* do border along [img][row=0][col=dstWidth-1] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage - + (srcWidth - 1) * bpt; - dst = dstPtr + (img + 1) * bytesPerDstImage - + (dstWidth - 1) * bpt; - do_row(format, 1, src, src + srcImageOffset, 1, dst); - - /* do border along [img][row=dstHeight-1][col=dstWidth-1] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage - + (bytesPerSrcImage - bpt); - dst = dstPtr + (img + 1) * bytesPerDstImage - + (bytesPerDstImage - bpt); - do_row(format, 1, src, src + srcImageOffset, 1, dst); - } - } - } -} - - -/** - * For GL_SGIX_generate_mipmap: - * Generate a complete set of mipmaps from texObj's base-level image. - * Stop at texObj's MaxLevel or when we get to the 1x1 texture. - */ -void -_mesa_generate_mipmap(GLcontext *ctx, GLenum target, - const struct gl_texture_unit *texUnit, - struct gl_texture_object *texObj) -{ - const struct gl_texture_image *srcImage; - const struct gl_texture_format *convertFormat; - const GLubyte *srcData = NULL; - GLubyte *dstData = NULL; - GLint level, maxLevels; - - ASSERT(texObj); - /* XXX choose cube map face here??? */ - srcImage = texObj->Image[0][texObj->BaseLevel]; - ASSERT(srcImage); - - maxLevels = _mesa_max_texture_levels(ctx, texObj->Target); - ASSERT(maxLevels > 0); /* bad target */ - - /* Find convertFormat - the format that do_row() will process */ - if (srcImage->IsCompressed) { - /* setup for compressed textures */ - GLuint row; - GLint components, size; - GLchan *dst; - - assert(texObj->Target == GL_TEXTURE_2D); - - if (srcImage->_BaseFormat == GL_RGB) { - convertFormat = &_mesa_texformat_rgb; - components = 3; - } - else if (srcImage->_BaseFormat == GL_RGBA) { - convertFormat = &_mesa_texformat_rgba; - components = 4; - } - else { - _mesa_problem(ctx, "bad srcImage->_BaseFormat in _mesa_generate_mipmaps"); - return; - } - - /* allocate storage for uncompressed GL_RGB or GL_RGBA images */ - size = _mesa_bytes_per_pixel(srcImage->_BaseFormat, CHAN_TYPE) - * srcImage->Width * srcImage->Height * srcImage->Depth + 20; - /* 20 extra bytes, just be safe when calling last FetchTexel */ - srcData = (GLubyte *) _mesa_malloc(size); - if (!srcData) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "generate mipmaps"); - return; - } - dstData = (GLubyte *) _mesa_malloc(size / 2); /* 1/4 would probably be OK */ - if (!dstData) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "generate mipmaps"); - _mesa_free((void *) srcData); - return; - } - - /* decompress base image here */ - dst = (GLchan *) srcData; - for (row = 0; row < srcImage->Height; row++) { - GLuint col; - for (col = 0; col < srcImage->Width; col++) { - srcImage->FetchTexelc(srcImage, col, row, 0, dst); - dst += components; - } - } - } - else { - /* uncompressed */ - convertFormat = srcImage->TexFormat; - } - - for (level = texObj->BaseLevel; level < texObj->MaxLevel - && level < maxLevels - 1; level++) { - /* generate image[level+1] from image[level] */ - const struct gl_texture_image *srcImage; - struct gl_texture_image *dstImage; - GLint srcWidth, srcHeight, srcDepth; - GLint dstWidth, dstHeight, dstDepth; - GLint border, bytesPerTexel; - - /* get src image parameters */ - srcImage = _mesa_select_tex_image(ctx, texUnit, target, level); - ASSERT(srcImage); - srcWidth = srcImage->Width; - srcHeight = srcImage->Height; - srcDepth = srcImage->Depth; - border = srcImage->Border; - - /* compute next (level+1) image size */ - if (srcWidth - 2 * border > 1) { - dstWidth = (srcWidth - 2 * border) / 2 + 2 * border; - } - else { - dstWidth = srcWidth; /* can't go smaller */ - } - if (srcHeight - 2 * border > 1) { - dstHeight = (srcHeight - 2 * border) / 2 + 2 * border; - } - else { - dstHeight = srcHeight; /* can't go smaller */ - } - if (srcDepth - 2 * border > 1) { - dstDepth = (srcDepth - 2 * border) / 2 + 2 * border; - } - else { - dstDepth = srcDepth; /* can't go smaller */ - } - - if (dstWidth == srcWidth && - dstHeight == srcHeight && - dstDepth == srcDepth) { - /* all done */ - if (srcImage->IsCompressed) { - _mesa_free((void *) srcData); - _mesa_free(dstData); - } - return; - } - - /* get dest gl_texture_image */ - dstImage = _mesa_get_tex_image(ctx, texUnit, target, level + 1); - if (!dstImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); - return; - } - - /* Free old image data */ - if (dstImage->Data) - ctx->Driver.FreeTexImageData(ctx, dstImage); - - /* initialize new image */ - _mesa_init_teximage_fields(ctx, target, dstImage, dstWidth, dstHeight, - dstDepth, border, srcImage->InternalFormat); - dstImage->DriverData = NULL; - dstImage->TexFormat = srcImage->TexFormat; - dstImage->FetchTexelc = srcImage->FetchTexelc; - dstImage->FetchTexelf = srcImage->FetchTexelf; - dstImage->IsCompressed = srcImage->IsCompressed; - if (dstImage->IsCompressed) { - dstImage->CompressedSize - = ctx->Driver.CompressedTextureSize(ctx, dstImage->Width, - dstImage->Height, - dstImage->Depth, - dstImage->TexFormat->MesaFormat); - ASSERT(dstImage->CompressedSize > 0); - } - - ASSERT(dstImage->TexFormat); - ASSERT(dstImage->FetchTexelc); - ASSERT(dstImage->FetchTexelf); - - /* Alloc new teximage data buffer. - * Setup src and dest data pointers. - */ - if (dstImage->IsCompressed) { - dstImage->Data = _mesa_alloc_texmemory(dstImage->CompressedSize); - if (!dstImage->Data) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); - return; - } - /* srcData and dstData are already set */ - ASSERT(srcData); - ASSERT(dstData); - } - else { - bytesPerTexel = dstImage->TexFormat->TexelBytes; - ASSERT(dstWidth * dstHeight * dstDepth * bytesPerTexel > 0); - dstImage->Data = _mesa_alloc_texmemory(dstWidth * dstHeight - * dstDepth * bytesPerTexel); - if (!dstImage->Data) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); - return; - } - srcData = (const GLubyte *) srcImage->Data; - dstData = (GLubyte *) dstImage->Data; - } - - /* - * We use simple 2x2 averaging to compute the next mipmap level. - */ - switch (target) { - case GL_TEXTURE_1D: - make_1d_mipmap(convertFormat, border, - srcWidth, srcData, - dstWidth, dstData); - break; - case GL_TEXTURE_2D: - case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: - make_2d_mipmap(convertFormat, border, - srcWidth, srcHeight, srcData, - dstWidth, dstHeight, dstData); - break; - case GL_TEXTURE_3D: - make_3d_mipmap(convertFormat, border, - srcWidth, srcHeight, srcDepth, srcData, - dstWidth, dstHeight, dstDepth, dstData); - break; - case GL_TEXTURE_RECTANGLE_NV: - /* no mipmaps, do nothing */ - break; - default: - _mesa_problem(ctx, "bad dimensions in _mesa_generate_mipmaps"); - return; - } - - if (dstImage->IsCompressed) { - GLubyte *temp; - /* compress image from dstData into dstImage->Data */ - const GLenum srcFormat = convertFormat->BaseFormat; - GLint dstRowStride - = _mesa_compressed_row_stride(dstImage->TexFormat->MesaFormat, dstWidth); - ASSERT(srcFormat == GL_RGB || srcFormat == GL_RGBA); - dstImage->TexFormat->StoreImage(ctx, 2, dstImage->_BaseFormat, - dstImage->TexFormat, - dstImage->Data, - 0, 0, 0, /* dstX/Y/Zoffset */ - dstRowStride, 0, /* strides */ - dstWidth, dstHeight, 1, /* size */ - srcFormat, CHAN_TYPE, - dstData, /* src data, actually */ - &ctx->DefaultPacking); - /* swap src and dest pointers */ - temp = (GLubyte *) srcData; - srcData = dstData; - dstData = temp; - } - - } /* loop over mipmap levels */ -} - - -/** - * Helper function for drivers which need to rescale texture images to - * certain aspect ratios. - * Nearest filtering only (for broken hardware that can't support - * all aspect ratios). This can be made a lot faster, but I don't - * really care enough... - */ -void -_mesa_rescale_teximage2d (GLuint bytesPerPixel, - GLuint srcStrideInPixels, - GLuint dstRowStride, - GLint srcWidth, GLint srcHeight, - GLint dstWidth, GLint dstHeight, - const GLvoid *srcImage, GLvoid *dstImage) -{ - GLint row, col; - -#define INNER_LOOP( TYPE, HOP, WOP ) \ - for ( row = 0 ; row < dstHeight ; row++ ) { \ - GLint srcRow = row HOP hScale; \ - for ( col = 0 ; col < dstWidth ; col++ ) { \ - GLint srcCol = col WOP wScale; \ - dst[col] = src[srcRow * srcStrideInPixels + srcCol]; \ - } \ - dst = (TYPE *) ((GLubyte *) dst + dstRowStride); \ - } \ - -#define RESCALE_IMAGE( TYPE ) \ -do { \ - const TYPE *src = (const TYPE *)srcImage; \ - TYPE *dst = (TYPE *)dstImage; \ - \ - if ( srcHeight < dstHeight ) { \ - const GLint hScale = dstHeight / srcHeight; \ - if ( srcWidth < dstWidth ) { \ - const GLint wScale = dstWidth / srcWidth; \ - INNER_LOOP( TYPE, /, / ); \ - } \ - else { \ - const GLint wScale = srcWidth / dstWidth; \ - INNER_LOOP( TYPE, /, * ); \ - } \ - } \ - else { \ - const GLint hScale = srcHeight / dstHeight; \ - if ( srcWidth < dstWidth ) { \ - const GLint wScale = dstWidth / srcWidth; \ - INNER_LOOP( TYPE, *, / ); \ - } \ - else { \ - const GLint wScale = srcWidth / dstWidth; \ - INNER_LOOP( TYPE, *, * ); \ - } \ - } \ -} while (0) - - switch ( bytesPerPixel ) { - case 4: - RESCALE_IMAGE( GLuint ); - break; - - case 2: - RESCALE_IMAGE( GLushort ); - break; - - case 1: - RESCALE_IMAGE( GLubyte ); - break; - default: - _mesa_problem(NULL,"unexpected bytes/pixel in _mesa_rescale_teximage2d"); - } -} - - -/** - * Upscale an image by replication, not (typical) stretching. - * We use this when the image width or height is less than a - * certain size (4, 8) and we need to upscale an image. - */ -void -_mesa_upscale_teximage2d (GLsizei inWidth, GLsizei inHeight, - GLsizei outWidth, GLsizei outHeight, - GLint comps, const GLchan *src, GLint srcRowStride, - GLchan *dest ) -{ - GLint i, j, k; - - ASSERT(outWidth >= inWidth); - ASSERT(outHeight >= inHeight); -#if 0 - ASSERT(inWidth == 1 || inWidth == 2 || inHeight == 1 || inHeight == 2); - ASSERT((outWidth & 3) == 0); - ASSERT((outHeight & 3) == 0); -#endif - - for (i = 0; i < outHeight; i++) { - const GLint ii = i % inHeight; - for (j = 0; j < outWidth; j++) { - const GLint jj = j % inWidth; - for (k = 0; k < comps; k++) { - dest[(i * outWidth + j) * comps + k] - = src[ii * srcRowStride + jj * comps + k]; - } - } - } -} #if FEATURE_EXT_texture_sRGB |