#include <stdio.h>
#include "txc_dxtn.h"
Go to the source code of this file.
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#define | EXP5TO8R(packedcol) ((((packedcol) >> 8) & 0xf8) | (((packedcol) >> 13) & 0x7)) |
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#define | EXP6TO8G(packedcol) ((((packedcol) >> 3) & 0xfc) | (((packedcol) >> 9) & 0x3)) |
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#define | EXP5TO8B(packedcol) ((((packedcol) << 3) & 0xf8) | (((packedcol) >> 2) & 0x7)) |
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#define | EXP4TO8(col) ((col) | ((col) << 4)) |
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static void | dxt135_decode_imageblock (const GLubyte *img_block_src, GLint i, GLint j, GLuint dxt_type, GLvoid *texel) |
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void | fetch_2d_texel_rgb_dxt1 (GLint srcRowStride, const GLubyte *pixdata, GLint i, GLint j, GLvoid *texel) |
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void | fetch_2d_texel_rgba_dxt1 (GLint srcRowStride, const GLubyte *pixdata, GLint i, GLint j, GLvoid *texel) |
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void | fetch_2d_texel_rgba_dxt3 (GLint srcRowStride, const GLubyte *pixdata, GLint i, GLint j, GLvoid *texel) |
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void | fetch_2d_texel_rgba_dxt5 (GLint srcRowStride, const GLubyte *pixdata, GLint i, GLint j, GLvoid *texel) |
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◆ EXP4TO8
#define EXP4TO8 |
( |
|
col | ) |
((col) | ((col) << 4)) |
◆ EXP5TO8B
#define EXP5TO8B |
( |
|
packedcol | ) |
((((packedcol) << 3) & 0xf8) | (((packedcol) >> 2) & 0x7)) |
◆ EXP5TO8R
#define EXP5TO8R |
( |
|
packedcol | ) |
((((packedcol) >> 8) & 0xf8) | (((packedcol) >> 13) & 0x7)) |
◆ EXP6TO8G
#define EXP6TO8G |
( |
|
packedcol | ) |
((((packedcol) >> 3) & 0xfc) | (((packedcol) >> 9) & 0x3)) |
◆ dxt135_decode_imageblock()
Definition at line 46 of file txc_fetch_dxtn.c.
47 {
49 const GLushort color0 = img_block_src[0] | (img_block_src[1] << 8);
50 const GLushort color1 = img_block_src[2] | (img_block_src[3] << 8);
51 const GLuint bits = img_block_src[4] | (img_block_src[5] << 8) |
52 (img_block_src[6] << 16) | (img_block_src[7] << 24);
53
56
59 case 0:
63 break;
64 case 1:
68 break;
69 case 2:
70 if ((dxt_type > 1) || (color0 > color1)) {
74 }
75 else {
79 }
80 break;
81 case 3:
82 if ((dxt_type > 1) || (color0 > color1)) {
86 }
87 else {
92 }
93 break;
94 default:
95
96 break;
97 }
98}
#define EXP5TO8R(packedcol)
#define EXP6TO8G(packedcol)
#define EXP5TO8B(packedcol)
GLenum GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * bits
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint GLint GLint j
◆ fetch_2d_texel_rgb_dxt1()
Definition at line 101 of file txc_fetch_dxtn.c.
103{
104
105
106
107
108 const GLubyte *blksrc = (
pixdata + ((srcRowStride + 3) / 4 * (
j / 4) + (
i / 4)) * 8);
110}
static void dxt135_decode_imageblock(const GLubyte *img_block_src, GLint i, GLint j, GLuint dxt_type, GLvoid *texel)
static const unsigned char pixdata[]
◆ fetch_2d_texel_rgba_dxt1()
◆ fetch_2d_texel_rgba_dxt3()
Definition at line 124 of file txc_fetch_dxtn.c.
125 {
126
127
128
129
130
132 const GLubyte *blksrc = (
pixdata + ((srcRowStride + 3) / 4 * (
j / 4) + (
i / 4)) * 16);
133#if 0
134
135
136 const GLubyte bit_pos = 4 * ((
j&3) * 4 + (
i&3));
137 const GLuint alpha_low = blksrc[0] | (blksrc[1] << 8) | (blksrc[2] << 16) | (blksrc[3] << 24);
138 const GLuint alpha_high = blksrc[4] | (blksrc[5] << 8) | (blksrc[6] << 16) | (blksrc[7] << 24);
139
141 if (bit_pos < 32)
143 else
145#endif
146#if 1
147
148 const GLubyte anibble = (blksrc[((
j&3) * 4 + (
i&3)) / 2] >> (4 * (
i&1))) & 0xf;
151#endif
152
153}
Referenced by D3DXLoadSurfaceFromMemory(), and wined3d_dxtn_init().
◆ fetch_2d_texel_rgba_dxt5()
Definition at line 155 of file txc_fetch_dxtn.c.
156 {
157
158
159
160
161
163 const GLubyte *blksrc = (
pixdata + ((srcRowStride + 3) / 4 * (
j / 4) + (
i / 4)) * 16);
164 const GLubyte alpha0 = blksrc[0];
165 const GLubyte alpha1 = blksrc[1];
166#if 0
167 const GLubyte bit_pos = 3 * ((
j&3) * 4 + (
i&3));
168
169 const GLuint bits_low = blksrc[2] | (blksrc[3] << 8) | (blksrc[4] << 16) | (blksrc[5] << 24);
170 const GLuint bits_high = blksrc[6] | (blksrc[7] << 8);
172
173 if (bit_pos < 30)
175 else if (bit_pos == 30)
176 code = (
GLubyte) ((bits_low >> 30) & 3) | ((bits_high << 2) & 4);
177 else
178 code = (
GLubyte) ((bits_high >> (bit_pos - 32)) & 7);
179#endif
180#if 1
181
182 const GLubyte bit_pos = ((
j&3) * 4 + (
i&3)) * 3;
183 const GLubyte acodelow = blksrc[2 + bit_pos / 8];
184 const GLubyte acodehigh = blksrc[3 + bit_pos / 8];
185 const GLubyte code = (acodelow >> (bit_pos & 0x7) |
186 (acodehigh << (8 - (bit_pos & 0x7)))) & 0x7;
187#endif
189#if 0
190 if (alpha0 > alpha1) {
192 case 0:
194 break;
195 case 1:
197 break;
198 case 2:
199 case 3:
200 case 4:
201 case 5:
202 case 6:
203 case 7:
205 break;
206 }
207 }
208 else {
210 case 0:
212 break;
213 case 1:
215 break;
216 case 2:
217 case 3:
218 case 4:
219 case 5:
221 break;
222 case 6:
224 break;
225 case 7:
227 break;
228 }
229 }
230#endif
231
232#if 1
233
238 else if (alpha0 > alpha1)
244 else
246#endif
247}
Referenced by D3DXLoadSurfaceFromMemory(), and wined3d_dxtn_init().