void renderer_copy_texture(struct renderer *ctx,
struct pipe_texture *src,
VGfloat sx1, VGfloat sy1,
VGfloat sx2, VGfloat sy2,
struct pipe_texture *dst,
VGfloat dx1, VGfloat dy1,
VGfloat dx2, VGfloat dy2)
{
struct pipe_context *pipe = ctx->pipe;
struct pipe_screen *screen = pipe->screen;
struct pipe_buffer *buf;
struct pipe_surface *dst_surf = screen->get_tex_surface(
screen, dst, 0, 0, 0,
PIPE_BUFFER_USAGE_GPU_WRITE);
struct pipe_framebuffer_state fb;
float s0, t0, s1, t1;
assert(src->width0 != 0);
assert(src->height0 != 0);
assert(dst->width0 != 0);
assert(dst->height0 != 0);
#if 0
debug_printf("copy texture [%f, %f, %f, %f], [%f, %f, %f, %f]\n",
sx1, sy1, sx2, sy2, dx1, dy1, dx2, dy2);
#endif
#if 1
s0 = sx1 / src->width0;
s1 = sx2 / src->width0;
t0 = sy1 / src->height0;
t1 = sy2 / src->height0;
#else
s0 = 0;
s1 = 1;
t0 = 0;
t1 = 1;
#endif
assert(screen->is_format_supported(screen, dst_surf->format, PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_RENDER_TARGET, 0));
/* save state (restored below) */
cso_save_blend(ctx->cso);
cso_save_samplers(ctx->cso);
cso_save_sampler_textures(ctx->cso);
cso_save_framebuffer(ctx->cso);
cso_save_fragment_shader(ctx->cso);
cso_save_vertex_shader(ctx->cso);
cso_save_viewport(ctx->cso);
/* set misc state we care about */
{
struct pipe_blend_state blend;
memset(&blend, 0, sizeof(blend));
blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
blend.rt[0].colormask = PIPE_MASK_RGBA;
cso_set_blend(ctx->cso, &blend);
}
/* sampler */
{
struct pipe_sampler_state sampler;
memset(&sampler, 0, sizeof(sampler));
sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
sampler.normalized_coords = 1;
cso_single_sampler(ctx->cso, 0, &sampler);
cso_single_sampler_done(ctx->cso);
}
vg_set_viewport(ctx->owner, VEGA_Y0_TOP);
/* texture */
cso_set_sampler_textures(ctx->cso, 1, &src);
/* shaders */
cso_set_vertex_shader_handle(ctx->cso, vg_texture_vs(ctx->owner));
cso_set_fragment_shader_handle(ctx->cso, ctx->fs);
/* drawing dest */
memset(&fb, 0, sizeof(fb));
fb.width = dst_surf->width;
fb.height = dst_surf->height;
fb.nr_cbufs = 1;
fb.cbufs[0] = dst_surf;
{
VGint i;
for (i = 1; i < PIPE_MAX_COLOR_BUFS; ++i)
fb.cbufs[i] = 0;
}
cso_set_framebuffer(ctx->cso, &fb);
/* draw quad */
buf = setup_vertex_data_tex(ctx,
dx1, dy1,
dx2, dy2,
s0, t0, s1, t1,
0.0f);
if (buf) {
util_draw_vertex_buffer(ctx->pipe, buf, 0,
PIPE_PRIM_TRIANGLE_FAN,
4, /* verts */
2); /* attribs/vert */
pipe_buffer_reference( &buf,
NULL );
}
/* restore state we changed */
cso_restore_blend(ctx->cso);
cso_restore_samplers(ctx->cso);
cso_restore_sampler_textures(ctx->cso);
cso_restore_framebuffer(ctx->cso);
cso_restore_vertex_shader(ctx->cso);
cso_restore_fragment_shader(ctx->cso);
cso_restore_viewport(ctx->cso);
pipe_surface_reference(&dst_surf, NULL);
}
void renderer_copy_surface(struct renderer *ctx,
struct pipe_surface *src,
int srcX0, int srcY0,
int srcX1, int srcY1,
struct pipe_surface *dst,
int dstX0, int dstY0,
int dstX1, int dstY1,
float z, unsigned filter)
{
struct pipe_context *pipe = ctx->pipe;
struct pipe_screen *screen = pipe->screen;
struct pipe_buffer *buf;
struct pipe_texture texTemp, *tex;
struct pipe_surface *texSurf;
struct pipe_framebuffer_state fb;
struct st_framebuffer *stfb = ctx->owner->draw_buffer;
const int srcW = abs(srcX1 - srcX0);
const int srcH = abs(srcY1 - srcY0);
const int srcLeft = MIN2(srcX0, srcX1);
const int srcTop = MIN2(srcY0, srcY1);
assert(filter == PIPE_TEX_MIPFILTER_NEAREST ||
filter == PIPE_TEX_MIPFILTER_LINEAR);
if (srcLeft != srcX0) {
/* left-right flip */
int tmp = dstX0;
dstX0 = dstX1;
dstX1 = tmp;
}
if (srcTop != srcY0) {
/* up-down flip */
int tmp = dstY0;
dstY0 = dstY1;
dstY1 = tmp;
}
assert(screen->is_format_supported(screen, src->format, PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_SAMPLER, 0));
assert(screen->is_format_supported(screen, dst->format, PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_SAMPLER, 0));
assert(screen->is_format_supported(screen, dst->format, PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_RENDER_TARGET, 0));
/*
* XXX for now we're always creating a temporary texture.
* Strictly speaking that's not always needed.
*/
/* create temp texture */
memset(&texTemp, 0, sizeof(texTemp));
texTemp.target = PIPE_TEXTURE_2D;
texTemp.format = src->format;
texTemp.last_level = 0;
texTemp.width0 = srcW;
texTemp.height0 = srcH;
texTemp.depth0 = 1;
tex = screen->texture_create(screen, &texTemp);
if (!tex)
return;
texSurf = screen->get_tex_surface(screen, tex, 0, 0, 0,
PIPE_BUFFER_USAGE_GPU_WRITE);
/* load temp texture */
if (pipe->surface_copy) {
pipe->surface_copy(pipe,
texSurf, 0, 0, /* dest */
src, srcLeft, srcTop, /* src */
srcW, srcH); /* size */
} else {
util_surface_copy(pipe, FALSE,
texSurf, 0, 0, /* dest */
src, srcLeft, srcTop, /* src */
srcW, srcH); /* size */
}
/* free the surface, update the texture if necessary.*/
screen->tex_surface_destroy(texSurf);
/* save state (restored below) */
cso_save_blend(ctx->cso);
cso_save_samplers(ctx->cso);
cso_save_sampler_textures(ctx->cso);
cso_save_framebuffer(ctx->cso);
cso_save_fragment_shader(ctx->cso);
cso_save_vertex_shader(ctx->cso);
cso_save_viewport(ctx->cso);
/* set misc state we care about */
{
struct pipe_blend_state blend;
memset(&blend, 0, sizeof(blend));
blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
blend.rt[0].colormask = PIPE_MASK_RGBA;
cso_set_blend(ctx->cso, &blend);
}
vg_set_viewport(ctx->owner, VEGA_Y0_TOP);
/* sampler */
{
struct pipe_sampler_state sampler;
memset(&sampler, 0, sizeof(sampler));
sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
sampler.normalized_coords = 1;
cso_single_sampler(ctx->cso, 0, &sampler);
cso_single_sampler_done(ctx->cso);
}
/* texture */
cso_set_sampler_textures(ctx->cso, 1, &tex);
/* shaders */
cso_set_fragment_shader_handle(ctx->cso, ctx->fs);
cso_set_vertex_shader_handle(ctx->cso, vg_texture_vs(ctx->owner));
/* drawing dest */
if (stfb->strb->surface != dst) {
memset(&fb, 0, sizeof(fb));
fb.width = dst->width;
fb.height = dst->height;
fb.nr_cbufs = 1;
fb.cbufs[0] = dst;
fb.zsbuf = stfb->dsrb->surface;
cso_set_framebuffer(ctx->cso, &fb);
}
/* draw quad */
buf = setup_vertex_data(ctx,
(float) dstX0, (float) dstY0,
(float) dstX1, (float) dstY1, z);
if (buf) {
util_draw_vertex_buffer(ctx->pipe, buf, 0,
PIPE_PRIM_TRIANGLE_FAN,
4, /* verts */
2); /* attribs/vert */
pipe_buffer_reference( &buf,
NULL );
}
/* restore state we changed */
cso_restore_blend(ctx->cso);
cso_restore_samplers(ctx->cso);
cso_restore_sampler_textures(ctx->cso);
cso_restore_framebuffer(ctx->cso);
cso_restore_fragment_shader(ctx->cso);
cso_restore_vertex_shader(ctx->cso);
cso_restore_viewport(ctx->cso);
pipe_texture_reference(&tex, NULL);
}
static void
draw_textured_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z,
GLsizei width, GLsizei height,
GLfloat zoomX, GLfloat zoomY,
struct pipe_texture *pt,
struct st_vertex_program *stvp,
struct st_fragment_program *stfp,
const GLfloat *color,
GLboolean invertTex)
{
struct st_context *st = ctx->st;
struct pipe_context *pipe = ctx->st->pipe;
struct cso_context *cso = ctx->st->cso_context;
GLfloat x0, y0, x1, y1;
GLsizei maxSize;
/* limit checks */
/* XXX if DrawPixels image is larger than max texture size, break
* it up into chunks.
*/
maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
assert(width <= maxSize);
assert(height <= maxSize);
cso_save_rasterizer(cso);
cso_save_viewport(cso);
cso_save_samplers(cso);
cso_save_sampler_textures(cso);
cso_save_fragment_shader(cso);
cso_save_vertex_shader(cso);
/* rasterizer state: just scissor */
{
struct pipe_rasterizer_state rasterizer;
memset(&rasterizer, 0, sizeof(rasterizer));
rasterizer.gl_rasterization_rules = 1;
rasterizer.scissor = ctx->Scissor.Enabled;
cso_set_rasterizer(cso, &rasterizer);
}
/* fragment shader state: TEX lookup program */
cso_set_fragment_shader_handle(cso, stfp->driver_shader);
/* vertex shader state: position + texcoord pass-through */
cso_set_vertex_shader_handle(cso, stvp->driver_shader);
/* texture sampling state: */
{
struct pipe_sampler_state sampler;
memset(&sampler, 0, sizeof(sampler));
sampler.wrap_s = PIPE_TEX_WRAP_CLAMP;
sampler.wrap_t = PIPE_TEX_WRAP_CLAMP;
sampler.wrap_r = PIPE_TEX_WRAP_CLAMP;
sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
sampler.normalized_coords = 1;
cso_single_sampler(cso, 0, &sampler);
if (st->pixel_xfer.pixelmap_enabled) {
cso_single_sampler(cso, 1, &sampler);
}
cso_single_sampler_done(cso);
}
/* viewport state: viewport matching window dims */
{
const float width = (float) ctx->DrawBuffer->Width;
const float height = (float) ctx->DrawBuffer->Height;
struct pipe_viewport_state vp;
vp.scale[0] = 0.5f * width;
vp.scale[1] = -0.5f * height;
vp.scale[2] = 1.0f;
vp.scale[3] = 1.0f;
vp.translate[0] = 0.5f * width;
vp.translate[1] = 0.5f * height;
vp.translate[2] = 0.0f;
vp.translate[3] = 0.0f;
cso_set_viewport(cso, &vp);
}
/* texture state: */
if (st->pixel_xfer.pixelmap_enabled) {
struct pipe_texture *textures[2];
textures[0] = pt;
textures[1] = st->pixel_xfer.pixelmap_texture;
pipe->set_sampler_textures(pipe, 2, textures);
}
else {
pipe->set_sampler_textures(pipe, 1, &pt);
}
/* Compute window coords (y=0=bottom) with pixel zoom.
* Recall that these coords are transformed by the current
* vertex shader and viewport transformation.
*/
x0 = (GLfloat) x;
x1 = x + width * ctx->Pixel.ZoomX;
y0 = (GLfloat) y;
y1 = y + height * ctx->Pixel.ZoomY;
draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex);
/* restore state */
cso_restore_rasterizer(cso);
cso_restore_viewport(cso);
cso_restore_samplers(cso);
cso_restore_sampler_textures(cso);
cso_restore_fragment_shader(cso);
cso_restore_vertex_shader(cso);
}