--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+/**
+ * Texture Image-related functions.
+ * \author Brian Paul
+ */
+
+#include "main/imports.h"
+#include "main/context.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "st_context.h"
+#include "st_cb_teximage.h"
+
+
+/**
+ * Search list of formats for first RGBA format.
+ */
+static GLuint
+default_rgba_format(const GLuint formats[], GLuint num)
+{
+ GLuint i;
+ for (i = 0; i < num; i++) {
+ if (formats[i] == PIPE_FORMAT_U_R8_G8_B8_A8 ||
+ formats[i] == PIPE_FORMAT_U_A8_R8_G8_B8 ||
+ formats[i] == PIPE_FORMAT_U_R5_G6_B5) {
+ return formats[i];
+ }
+ }
+ return PIPE_FORMAT_NONE;
+}
+
+
+/**
+ * Search list of formats for first depth/Z format.
+ */
+static GLuint
+default_depth_format(const GLuint formats[], GLuint num)
+{
+ GLuint i;
+ for (i = 0; i < num; i++) {
+ if (formats[i] == PIPE_FORMAT_U_Z16 ||
+ formats[i] == PIPE_FORMAT_U_Z32 ||
+ formats[i] == PIPE_FORMAT_S8_Z24) {
+ return formats[i];
+ }
+ }
+ return PIPE_FORMAT_NONE;
+}
+
+
+/**
+ * Choose the PIPE_FORMAT_ to use for storing a texture image based
+ * on the user's internalFormat, format and type parameters.
+ * We query the pipe device for a list of formats which it supports
+ * and choose from them.
+ * If we find a device that needs a more intricate selection mechanism,
+ * this function _could_ get pushed down into the pipe device.
+ *
+ * \return PIPE_FORMAT_NONE if error/problem.
+ */
+static GLuint
+choose_tex_format(struct pipe_context *pipe, GLint internalFormat,
+ GLenum format, GLenum type)
+{
+ const GLuint *supported;
+ GLboolean allow[PIPE_FORMAT_COUNT];
+ GLuint i, n;
+
+ /* query supported formats and fill in bool allow[] table */
+ supported = pipe->supported_formats(pipe, &n);
+ assert(n < PIPE_FORMAT_COUNT); /* sanity check */
+ memset(allow, 0, sizeof(allow));
+ for (i = 0; i < n; i++) {
+ allow[supported[i]] = 1;
+ }
+
+ switch (internalFormat) {
+ case 4:
+ case GL_RGBA:
+ case GL_COMPRESSED_RGBA:
+ if (format == GL_BGRA) {
+ if (type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) {
+ if (allow[PIPE_FORMAT_U_A8_R8_G8_B8])
+ return PIPE_FORMAT_U_A8_R8_G8_B8;
+ }
+ else if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
+ /*
+ if (allow[PIPE_FORMAT_U_A4_R4_G4_B4])
+ return PIPE_FORMAT_U_A4_R4_G4_B4;
+ */
+ }
+ else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
+ /*
+ if (allow[PIPE_FORMAT_U_A1_R5_G5_B5])
+ return PIPE_FORMAT_U_A1_R5_G5_B5;
+ */
+ }
+ }
+ return default_rgba_format(supported, n);
+#if 0
+ case 3:
+ case GL_RGB:
+ case GL_COMPRESSED_RGB:
+ if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) {
+ return &_mesa_texformat_rgb565;
+ }
+ return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_rgb565;
+
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_argb4444;
+
+ case GL_RGBA4:
+ case GL_RGBA2:
+ return &_mesa_texformat_argb4444;
+
+ case GL_RGB5_A1:
+ return &_mesa_texformat_argb1555;
+
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ return &_mesa_texformat_argb8888;
+
+ case GL_RGB5:
+ case GL_RGB4:
+ case GL_R3_G3_B2:
+ return &_mesa_texformat_rgb565;
+
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ case GL_COMPRESSED_ALPHA:
+ return &_mesa_texformat_a8;
+
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ case GL_COMPRESSED_LUMINANCE:
+ return &_mesa_texformat_l8;
+
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ case GL_COMPRESSED_LUMINANCE_ALPHA:
+ return &_mesa_texformat_al88;
+
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ case GL_COMPRESSED_INTENSITY:
+ return &_mesa_texformat_i8;
+
+ case GL_YCBCR_MESA:
+ if (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE)
+ return &_mesa_texformat_ycbcr;
+ else
+ return &_mesa_texformat_ycbcr_rev;
+
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ return &_mesa_texformat_rgb_fxt1;
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ return &_mesa_texformat_rgba_fxt1;
+
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ return &_mesa_texformat_rgb_dxt1;
+
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ return &_mesa_texformat_rgba_dxt1;
+
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ return &_mesa_texformat_rgba_dxt3;
+
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ return &_mesa_texformat_rgba_dxt5;
+#endif
+
+ case GL_DEPTH_COMPONENT16:
+ if (allow[PIPE_FORMAT_U_Z16])
+ return PIPE_FORMAT_U_Z16;
+ /* fall-through */
+ case GL_DEPTH_COMPONENT24:
+ if (allow[PIPE_FORMAT_S8_Z24])
+ return PIPE_FORMAT_S8_Z24;
+ /* fall-through */
+ case GL_DEPTH_COMPONENT32:
+ if (allow[PIPE_FORMAT_U_Z32])
+ return PIPE_FORMAT_U_Z32;
+ /* fall-through */
+ case GL_DEPTH_COMPONENT:
+ return default_depth_format(supported, n);
+
+
+#if 0
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ return &_mesa_texformat_z24_s8;
+#endif
+ default:
+ return PIPE_FORMAT_NONE;
+ }
+}
+
+
+
+void st_init_cb_teximage( struct st_context *st )
+{
+ /*
+ struct dd_function_table *functions = &st->ctx->Driver;
+
+ functions->TexImage2D = st_teximage2d;
+ */
+}
+
+
+void st_destroy_cb_teximage( struct st_context *st )
+{
+}
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+#ifndef ST_CB_TEXIMAGE_H
+#define ST_CB_TEXIMAGE_H
+
+
+extern void st_init_cb_teximage( struct st_context *st );
+
+extern void st_destroy_cb_teximage( struct st_context *st );
+
+
+#endif /* ST_CB_TEXIMAGE_H */
OSDN Git Service
