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/**************************************************************************
*
* Copyright 2010 Jakob Bornecrantz
* Copyright 2011 Lauri Kasanen
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "postprocess/postprocess.h"
#include "cso_cache/cso_context.h"
#include "pipe/p_screen.h"
#include "pipe/p_context.h"
#include "pipe/p_state.h"
#include "pipe/p_shader_tokens.h"
#include "util/u_inlines.h"
#include "util/u_simple_shaders.h"
#include "util/u_memory.h"
/** Initialize the internal details */
struct program *
pp_init_prog(struct pp_queue_t *ppq, struct pipe_screen *pscreen)
{
struct program *p;
pp_debug("Initializing program\n");
if (!pscreen)
return NULL;
p = CALLOC(1, sizeof(struct program));
if (!p)
return NULL;
p->screen = pscreen;
p->pipe = pscreen->context_create(pscreen, NULL);
/* XXX this doesn't use the cso_context of the state tracker, but creates
* its own. Having 2 existing cso_contexts use 1 pipe_context may cause
* undefined behavior! */
p->cso = cso_create_context(p->pipe);
{
static const float verts[4][2][4] = {
{
{1.0f, 1.0f, 0.0f, 1.0f},
{1.0f, 1.0f, 0.0f, 1.0f}
},
{
{-1.0f, 1.0f, 0.0f, 1.0f},
{0.0f, 1.0f, 0.0f, 1.0f}
},
{
{-1.0f, -1.0f, 0.0f, 1.0f},
{0.0f, 0.0f, 0.0f, 1.0f}
},
{
{1.0f, -1.0f, 0.0f, 1.0f},
{1.0f, 0.0f, 0.0f, 1.0f}
}
};
p->vbuf = pipe_buffer_create(pscreen, PIPE_BIND_VERTEX_BUFFER,
PIPE_USAGE_STATIC, sizeof(verts));
pipe_buffer_write(p->pipe, p->vbuf, 0, sizeof(verts), verts);
}
p->blend.rt[0].colormask = PIPE_MASK_RGBA;
p->blend.rt[0].rgb_src_factor = p->blend.rt[0].alpha_src_factor =
PIPE_BLENDFACTOR_SRC_ALPHA;
p->blend.rt[0].rgb_dst_factor = p->blend.rt[0].alpha_dst_factor =
PIPE_BLENDFACTOR_INV_SRC_ALPHA;
p->rasterizer.cull_face = PIPE_FACE_NONE;
p->rasterizer.gl_rasterization_rules = 1;
p->rasterizer.depth_clip = 1;
p->sampler.wrap_s = p->sampler.wrap_t = p->sampler.wrap_r =
PIPE_TEX_WRAP_CLAMP_TO_EDGE;
p->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
p->sampler.min_img_filter = p->sampler.mag_img_filter =
PIPE_TEX_FILTER_LINEAR;
p->sampler.normalized_coords = 1;
p->sampler_point.wrap_s = p->sampler_point.wrap_t =
p->sampler_point.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
p->sampler_point.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
p->sampler_point.min_img_filter = p->sampler_point.mag_img_filter =
PIPE_TEX_FILTER_NEAREST;
p->sampler_point.normalized_coords = 1;
p->velem[0].src_offset = 0;
p->velem[0].instance_divisor = 0;
p->velem[0].vertex_buffer_index = 0;
p->velem[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
p->velem[1].src_offset = 1 * 4 * sizeof(float);
p->velem[1].instance_divisor = 0;
p->velem[1].vertex_buffer_index = 0;
p->velem[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
if (!p->screen->is_format_supported(p->screen,
PIPE_FORMAT_R32G32B32A32_FLOAT,
PIPE_BUFFER, 1,
PIPE_BIND_VERTEX_BUFFER))
pp_debug("Vertex buf format fail\n");
{
const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
TGSI_SEMANTIC_GENERIC
};
const uint semantic_indexes[] = { 0, 0 };
p->passvs = util_make_vertex_passthrough_shader(p->pipe, 2,
semantic_names,
semantic_indexes);
}
p->framebuffer.nr_cbufs = 1;
p->surf.usage = PIPE_BIND_RENDER_TARGET;
p->surf.format = PIPE_FORMAT_B8G8R8A8_UNORM;
p->pipe->set_sample_mask(p->pipe, ~0);
return p;
}
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