* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
-/* $XFree86: xc/lib/GL/mesa/src/drv/i810/i810tex.c,v 1.9 2002/10/30 12:51:33 alanh Exp $ */
-
-#include "glheader.h"
-#include "mtypes.h"
-#include "imports.h"
-#include "simple_list.h"
-#include "enums.h"
-#include "texstore.h"
-#include "texformat.h"
-#include "teximage.h"
-#include "texmem.h"
-#include "texobj.h"
+
+#include "main/glheader.h"
+#include "main/mtypes.h"
+#include "main/imports.h"
+#include "main/simple_list.h"
+#include "main/enums.h"
+#include "main/texstore.h"
+#include "main/texformat.h"
+#include "main/teximage.h"
+#include "main/texobj.h"
+#include "main/colormac.h"
+#include "main/texobj.h"
+#include "main/mm.h"
#include "swrast/swrast.h"
-#include "colormac.h"
-#include "texobj.h"
-#include "mm.h"
+
+#include "texmem.h"
#include "i810screen.h"
#include "i810_dri.h"
}
+/**
+ * Setup hardware bits for new texture environment settings.
+ *
+ * \todo
+ * Determine whether or not \c param can be used instead of
+ * \c texUnit->EnvColor in the \c GL_TEXTURE_ENV_COLOR case.
+ */
static void i810TexEnv( GLcontext *ctx, GLenum target,
GLenum pname, const GLfloat *param )
{
i810ContextPtr imesa = I810_CONTEXT( ctx );
- GLuint unit = ctx->Texture.CurrentUnit;
+ const GLuint unit = ctx->Texture.CurrentUnit;
+ const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
/* Only one env color. Need a fallback if env colors are different
* and texture setup references env color in both units.
*/
switch (pname) {
case GL_TEXTURE_ENV_COLOR: {
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
- GLfloat *fc = texUnit->EnvColor;
- GLuint r, g, b, a, col;
- CLAMPED_FLOAT_TO_UBYTE(r, fc[0]);
- CLAMPED_FLOAT_TO_UBYTE(g, fc[1]);
- CLAMPED_FLOAT_TO_UBYTE(b, fc[2]);
- CLAMPED_FLOAT_TO_UBYTE(a, fc[3]);
-
- col = ((a << 24) |
- (r << 16) |
- (g << 8) |
- (b << 0));
-
- if (imesa->Setup[I810_CTXREG_CF1] != col) {
- I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
- imesa->Setup[I810_CTXREG_CF1] = col;
+ GLubyte c[4];
+ GLuint envColor;
+
+ UNCLAMPED_FLOAT_TO_RGBA_CHAN( c, texUnit->EnvColor );
+ envColor = PACK_COLOR_8888( c[3], c[0], c[1], c[2] );
+
+ if (imesa->Setup[I810_CTXREG_CF1] != envColor) {
+ I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
+ imesa->Setup[I810_CTXREG_CF1] = envColor;
}
break;
}
+
case GL_TEXTURE_ENV_MODE:
imesa->TexEnvImageFmt[unit] = 0; /* force recalc of env state */
break;
- case GL_TEXTURE_LOD_BIAS_EXT:
- {
- struct gl_texture_object *tObj = ctx->Texture.Unit[unit]._Current;
- i810TextureObjectPtr t = (i810TextureObjectPtr) tObj->DriverData;
- t->Setup[I810_TEXREG_MLC] &= ~(MLC_LOD_BIAS_MASK);
- t->Setup[I810_TEXREG_MLC] |= i810ComputeLodBias(*param);
+ case GL_TEXTURE_LOD_BIAS: {
+ if ( texUnit->_Current != NULL ) {
+ const struct gl_texture_object *tObj = texUnit->_Current;
+ i810TextureObjectPtr t = (i810TextureObjectPtr) tObj->DriverData;
+
+ t->Setup[I810_TEXREG_MLC] &= ~(MLC_LOD_BIAS_MASK);
+ t->Setup[I810_TEXREG_MLC] |= i810ComputeLodBias(*param);
}
break;
+ }
default:
break;
_mesa_delete_texture_object(ctx, tObj);
}
+/**
+ * Choose a Mesa texture format to match the requested format.
+ *
+ * The i810 only supports 5 texture modes that are useful to Mesa. That
+ * makes this routine pretty simple.
+ */
static const struct gl_texture_format *
i810ChooseTextureFormat( GLcontext *ctx, GLint internalFormat,
GLenum format, GLenum type )
switch ( internalFormat ) {
case 4:
case GL_RGBA:
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
case GL_COMPRESSED_RGBA:
- if ( format == GL_BGRA ) {
- if ( type == GL_UNSIGNED_SHORT_1_5_5_5_REV ) {
- return &_mesa_texformat_argb1555;
- }
+ if ( ((format == GL_BGRA) && (type == GL_UNSIGNED_SHORT_1_5_5_5_REV))
+ || ((format == GL_RGBA) && (type == GL_UNSIGNED_SHORT_5_5_5_1))
+ || (internalFormat == GL_RGB5_A1) ) {
+ return &_mesa_texformat_argb1555;
}
return &_mesa_texformat_argb4444;
case GL_RGB10:
case GL_RGB12:
case GL_RGB16:
- return &_mesa_texformat_rgb565;
-
- case GL_RGBA2:
- case GL_RGBA4:
- case GL_RGBA8:
- case GL_RGB10_A2:
- case GL_RGBA12:
- case GL_RGBA16:
- return &_mesa_texformat_argb4444;
-
- case GL_RGB5_A1:
- return &_mesa_texformat_argb1555;
+ return &_mesa_texformat_rgb565;
case GL_ALPHA:
case GL_ALPHA4:
case GL_ALPHA12:
case GL_ALPHA16:
case GL_COMPRESSED_ALPHA:
- return &_mesa_texformat_al88;
-
case 1:
case GL_LUMINANCE:
case GL_LUMINANCE4:
case GL_LUMINANCE12:
case GL_LUMINANCE16:
case GL_COMPRESSED_LUMINANCE:
- return &_mesa_texformat_rgb565;
-
case 2:
case GL_LUMINANCE_ALPHA:
case GL_LUMINANCE4_ALPHA4:
case GL_INTENSITY12:
case GL_INTENSITY16:
case GL_COMPRESSED_INTENSITY:
- return &_mesa_texformat_argb4444;
+ return &_mesa_texformat_al88;
case GL_YCBCR_MESA:
if (type == GL_UNSIGNED_SHORT_8_8_MESA ||
projects / mesa.git / blobdiff