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i915: Prepare for tiled private front and back buffers

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This commit is contained in:
Jakob Bornecrantz 2008-05-27 21:15:36 +02:00
parent cb5e05d99c
commit ce56bcb640
2 changed files with 25 additions and 2 deletions
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1
src/gallium/drivers/i915simple/i915_state_emit.c
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@ -217,6 +217,7 @@ i915_emit_hardware_state(struct i915_context *i915 )
OUT_BATCH(BUF_3D_ID_COLOR_BACK |
BUF_3D_PITCH(pitch) | /* pitch in bytes */
// BUF_3D_TILED_SURFACE); /* JB: Used to force tileing */
BUF_3D_USE_FENCE);
OUT_RELOC(cbuf_surface->buffer,

26
src/gallium/winsys/dri/intel/intel_winsys_pipe.c
View file

@ -212,6 +212,15 @@ round_up(unsigned n, unsigned multiple)
return (n + multiple - 1) & ~(multiple - 1);
}
static unsigned
power_of_two(unsigned x)
{
int value = 1;
while (value <= x)
value = value << 1;
return value;
}
/*pipe_buffer_reference(winsys, &i915_render->vbo, NULL);*/
/**
* Copied from xm_winsys.c
*/
@ -224,18 +233,31 @@ intel_i915_surface_alloc_storage(struct pipe_winsys *winsys,
unsigned tex_usage)
{
const unsigned alignment = 64;
assert(!surf->buffer);
#if 0
surf->width = width;
surf->height = round_up(height, 8);
surf->format = format;
surf->cpp = pf_get_size(format);
surf->pitch = power_of_two(MAX2(width * surf->cpp, 512));
surf->buffer = winsys->buffer_create(winsys, 2*4096,
PIPE_BUFFER_USAGE_PIXEL,
surf->pitch * surf->height);
surf->pitch = surf->pitch / surf->cpp;
surf->height = height;
#else
surf->width = width;
surf->height = height;
surf->format = format;
surf->cpp = pf_get_size(format);
surf->pitch = round_up(width, alignment / surf->cpp);
assert(!surf->buffer);
surf->buffer = winsys->buffer_create(winsys, alignment,
PIPE_BUFFER_USAGE_PIXEL,
surf->pitch * surf->cpp * surf->height);
#endif
if(!surf->buffer)
return -1;