static void mgaDDClearColor(GLcontext *ctx,
const GLfloat color[4] )
{
mgaContextPtr mmesa = MGA_CONTEXT(ctx);
GLubyte c[4];
CLAMPED_FLOAT_TO_UBYTE(c[0], color[0]);
CLAMPED_FLOAT_TO_UBYTE(c[1], color[1]);
CLAMPED_FLOAT_TO_UBYTE(c[2], color[2]);
CLAMPED_FLOAT_TO_UBYTE(c[3], color[3]);
mmesa->ClearColor = mgaPackColor( mmesa->mgaScreen->cpp,
c[0], c[1], c[2], c[3]);
}
static void mgaDDColorMask(GLcontext *ctx,
GLboolean r, GLboolean g,
GLboolean b, GLboolean a )
{
mgaContextPtr mmesa = MGA_CONTEXT( ctx );
mgaScreenPrivate *mgaScreen = mmesa->mgaScreen;
GLuint mask = mgaPackColor(mgaScreen->cpp,
ctx->Color.ColorMask[RCOMP],
ctx->Color.ColorMask[GCOMP],
ctx->Color.ColorMask[BCOMP],
ctx->Color.ColorMask[ACOMP]);
if (mgaScreen->cpp == 2)
mask = mask | (mask << 16);
if (mmesa->setup.plnwt != mask) {
MGA_STATECHANGE( mmesa, MGA_UPLOAD_CONTEXT );
mmesa->setup.plnwt = mask;
}
}
static GLboolean
mgaTryDrawPixels( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *unpack,
const GLvoid *pixels )
{
mgaContextPtr mmesa = MGA_CONTEXT(ctx);
GLint size, skipPixels, skipRows;
GLint pitch = unpack->RowLength ? unpack->RowLength : width;
GLuint dest, planemask;
GLuint cpp = mmesa->mgaScreen->cpp;
if (!clip_pixelrect(ctx, ctx->DrawBuffer,
&x, &y, &width, &height,
&skipPixels, &skipRows, &size)) {
return GL_TRUE;
}
switch (format) {
#if defined(MESA_packed_depth_stencil)
case GL_DEPTH_STENCIL_MESA:
dest = mmesa->mgaScreen->depthOffset;
planemask = ~0;
if (!check_depth_stencil_24_8(ctx, type, unpack, pixels, size, pitch) ||
!check_depth_per_fragment_ops(ctx) ||
!check_stencil_per_fragment_ops(ctx))
return GL_FALSE;
break;
#endif
case GL_DEPTH_COMPONENT:
dest = mmesa->mgaScreen->depthOffset;
if (ctx->Visual.depthBits == 24)
planemask = ~0xff;
else
planemask = ~0;
if (!check_depth(ctx, type, unpack, pixels, size, pitch) ||
!check_depth_per_fragment_ops(ctx))
return GL_FALSE;
break;
case GL_RGB:
case GL_BGRA:
dest = (mmesa->draw_buffer == MGA_FRONT ?
mmesa->mgaScreen->frontOffset :
mmesa->mgaScreen->backOffset);
planemask = mgaPackColor(cpp,
ctx->Color.ColorMask[RCOMP],
ctx->Color.ColorMask[GCOMP],
ctx->Color.ColorMask[BCOMP],
ctx->Color.ColorMask[ACOMP]);
if (cpp == 2)
planemask |= planemask << 16;
if (!check_color(ctx, type, format, unpack, pixels, size, pitch)) {
return GL_FALSE;
}
if (!check_color_per_fragment_ops(ctx)) {
return GL_FALSE;
}
break;
default:
return GL_FALSE;
}
LOCK_HARDWARE_QUIESCENT( mmesa );
if (mmesa->dirty_cliprects & MGA_FRONT)
mgaUpdateRects( mmesa, MGA_FRONT );
if ( IS_AGP_MEM(mmesa, (char *)pixels) &&
IS_AGP_MEM(mmesa, (char *)pixels + size) )
{
do_draw_pix( ctx, x, y, width, height, pitch, pixels,
dest, planemask );
UPDATE_LOCK( mmesa, DRM_LOCK_FLUSH | DRM_LOCK_QUIESCENT );
}
else
{
/* Pixels is in regular memory -- get dma buffers and perform
* upload through them.
*/
/* drmBufPtr buf = mgaGetBufferLocked(mmesa); */
GLuint bufferpitch = (width*cpp+31)&~31;
char *address = 0; /* mmesa->mgaScreen->agp.map; */
do {
/* GLuint rows = MIN2( height, MGA_DMA_BUF_SZ / bufferpitch ); */
GLuint rows = height;
if (0) fprintf(stderr, "trying to upload %d rows (pitch %d)\n",
rows, bufferpitch);
/* The texture conversion code is so slow that there is only
* negligble speedup when the buffers/images don't exactly
* match:
*/
#if 0
if (cpp == 2) {
if (!_mesa_convert_texsubimage2d( MESA_FORMAT_RGB565,
0, 0, width, rows,
bufferpitch, format, type,
unpack, pixels, address )) {
/* mgaReleaseBufLocked( mmesa, buf ); */
UNLOCK_HARDWARE(mmesa);
return GL_FALSE;
}
} else {
if (!_mesa_convert_texsubimage2d( MESA_FORMAT_ARGB8888,
0, 0, width, rows,
bufferpitch, format, type,
unpack, pixels, address )) {
/* mgaReleaseBufLocked( mmesa, buf ); */
UNLOCK_HARDWARE(mmesa);
return GL_FALSE;
}
}
#else
MEMCPY( address, pixels, rows*bufferpitch );
#endif
do_draw_pix( ctx, x, y, width, rows,
bufferpitch/cpp, address, dest, planemask );
/* Fix me -- use multiple buffers to avoid flush.
*/
UPDATE_LOCK( mmesa, DRM_LOCK_FLUSH | DRM_LOCK_QUIESCENT );
pixels = (void *)((char *) pixels + rows * pitch);
height -= rows;
y += rows;
} while (height);
/* mgaReleaseBufLocked( mmesa, buf ); */
}
UNLOCK_HARDWARE( mmesa );
mmesa->dirty |= MGA_UPLOAD_CLIPRECTS;
return GL_TRUE;
}