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#include "glheader.h"
#include "context.h"
#include "framebuffer.h"
#include "renderbuffer.h"
#include "utils.h"
#include "main/macros.h"
#include "intel_screen.h"
#include "intel_context.h"
#include "intel_buffers.h"
#include "intel_regions.h"
#include "intel_span.h"
#include "intel_fbo.h"
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "pipe/softpipe/sp_surface.h"
/*
* XXX a lof of this is a temporary kludge
*/
static void
read_quad_f_swz(struct softpipe_surface *sps, GLint x, GLint y,
GLfloat (*rrrr)[QUAD_SIZE])
{
struct intel_surface *is = (struct intel_surface *) sps;
struct intel_renderbuffer *irb = is->rb;
const GLubyte *src = (const GLubyte *) irb->region->map
+ (y * irb->region->pitch + x) * irb->region->cpp;
GLfloat *dst = (GLfloat *) rrrr;
GLubyte temp[16];
GLuint i, j;
memcpy(temp, src, 8);
memcpy(temp + 8, src + irb->region->pitch * irb->region->cpp, 8);
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
dst[j * 4 + i] = UBYTE_TO_FLOAT(temp[i * 4 + j]);
}
}
}
static void
write_quad_f_swz(struct softpipe_surface *sps, GLint x, GLint y,
GLfloat (*rrrr)[QUAD_SIZE])
{
struct intel_surface *is = (struct intel_surface *) sps;
struct intel_renderbuffer *irb = is->rb;
const GLfloat *src = (const GLfloat *) rrrr;
GLubyte *dst = (GLubyte *) irb->region->map
+ (y * irb->region->pitch + x) * irb->region->cpp;
GLubyte temp[16];
GLuint i, j;
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
UNCLAMPED_FLOAT_TO_UBYTE(temp[j * 4 + i], src[i * 4 + j]);
}
}
memcpy(dst, temp, 8);
memcpy(dst + irb->region->pitch * irb->region->cpp, temp + 8, 8);
}
static void *
map_surface_buffer(struct pipe_buffer *pb, GLuint access_mode)
{
struct intel_surface *is = (struct intel_surface *) pb;
struct intel_renderbuffer *irb = is->rb;
GET_CURRENT_CONTEXT(ctx);
struct intel_context *intel = intel_context(ctx);
assert(access_mode == PIPE_MAP_READ_WRITE);
intelFinish(&intel->ctx);
/*LOCK_HARDWARE(intel);*/
if (irb->region) {
intel_region_map(intel->intelScreen, irb->region);
}
pb->ptr = irb->region->map;
return pb->ptr;
}
static void
unmap_surface_buffer(struct pipe_buffer *pb)
{
struct intel_surface *is = (struct intel_surface *) pb;
struct intel_renderbuffer *irb = is->rb;
GET_CURRENT_CONTEXT(ctx);
struct intel_context *intel = intel_context(ctx);
if (irb->region) {
intel_region_unmap(intel->intelScreen, irb->region);
}
pb->ptr = NULL;
/*UNLOCK_HARDWARE(intel);*/
}
struct pipe_surface *
xmesa_get_color_surface(GLcontext *ctx, GLuint i)
{
struct intel_context *intel = intel_context(ctx);
struct intel_framebuffer *intel_fb;
struct intel_renderbuffer *intel_rb;
intel_fb = (struct intel_framebuffer *) ctx->DrawBuffer;
intel_rb = intel_fb->color_rb[1];
if (!intel_rb->surface) {
/* create surface and attach to intel_rb */
struct intel_surface *is;
is = CALLOC_STRUCT(intel_surface);
if (is) {
is->surface.surface.width = intel_rb->Base.Width;
is->surface.surface.height = intel_rb->Base.Height;
is->surface.read_quad_f_swz = read_quad_f_swz;
is->surface.write_quad_f_swz = write_quad_f_swz;
is->surface.surface.buffer.map = map_surface_buffer;
is->surface.surface.buffer.unmap = unmap_surface_buffer;
is->rb = intel_rb;
}
intel_rb->surface = is;
}
else {
/* update surface size */
struct intel_surface *is = intel_rb->surface;
is->surface.surface.width = intel_rb->Base.Width;
is->surface.surface.height = intel_rb->Base.Height;
/* sanity check */
assert(is->surface.surface.buffer.map == map_surface_buffer);
}
return &intel_rb->surface->surface.surface;
}
struct pipe_surface *
xmesa_get_z_surface(GLcontext *ctx)
{
/* XXX fix */
return NULL;
}
struct pipe_surface *
xmesa_get_stencil_surface(GLcontext *ctx)
{
/* XXX fix */
return NULL;
}
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