d3d9_renderchain.h

Go to the documentation of this file.

/* RetroArch - A frontend for libretro.
 * Copyright (C) 2011-2018 - Daniel De Matteis
 *
 * RetroArch is free software: you can redistribute it and/or modify it under the terms
 * of the GNU General Public License as published by the Free Software Found-
 * ation, either version 3 of the License, or (at your option) any later version.
 *
 * RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with RetroArch.
 * If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __D3D9_RENDERCHAIN_H__
#define __D3D9_RENDERCHAIN_H__

#include <stdint.h>

#include <retro_common_api.h>
#include <retro_inline.h>
#include <boolean.h>

#include <d3d9.h>
#include "../common/d3d9_common.h"
#include "../../verbosity.h"

RETRO_BEGIN_DECLS

#define D3D_DEFAULT_NONPOW2 ((UINT)-2)
#define D3D_FILTER_LINEAR (3 << 0)
#define D3D_FILTER_POINT (2 << 0)

struct lut_info
{
 LPDIRECT3DTEXTURE9 tex;
 char id[64];
 bool smooth;
};

struct shader_pass
{
 unsigned last_width, last_height;
 struct LinkInfo info;
 D3DPOOL pool;
 LPDIRECT3DTEXTURE9 tex;
 LPDIRECT3DVERTEXBUFFER9 vertex_buf;
 LPDIRECT3DVERTEXDECLARATION9 vertex_decl;
 void *attrib_map;
 void *vprg;
 void *fprg;
 void *vtable;
 void *ftable;
};

#define D3D_PI 3.14159265358979323846264338327

#define VECTOR_LIST_TYPE unsigned
#define VECTOR_LIST_NAME unsigned
#include "../../libretro-common/lists/vector_list.c"
#undef VECTOR_LIST_TYPE
#undef VECTOR_LIST_NAME

#define VECTOR_LIST_TYPE struct lut_info
#define VECTOR_LIST_NAME lut_info
#include "../../libretro-common/lists/vector_list.c"
#undef VECTOR_LIST_TYPE
#undef VECTOR_LIST_NAME

#define VECTOR_LIST_TYPE struct shader_pass
#define VECTOR_LIST_NAME shader_pass
#include "../../libretro-common/lists/vector_list.c"
#undef VECTOR_LIST_TYPE
#undef VECTOR_LIST_NAME

struct D3D9Vertex
{
 float x, y, z;
 float u, v;
 float lut_u, lut_v;
 float r, g, b, a;
};

typedef struct d3d9_renderchain
{
 unsigned pixel_size;
 uint64_t frame_count;
 struct
 {
 LPDIRECT3DTEXTURE9 tex[TEXTURES];
 LPDIRECT3DVERTEXBUFFER9 vertex_buf[TEXTURES];
 unsigned ptr;
 unsigned last_width[TEXTURES];
 unsigned last_height[TEXTURES];
 } prev;
 LPDIRECT3DDEVICE9 dev;
 D3DVIEWPORT9 *final_viewport;
 struct shader_pass_vector_list *passes;
 struct unsigned_vector_list *bound_tex;
 struct unsigned_vector_list *bound_vert;
 struct lut_info_vector_list *luts;
} d3d9_renderchain_t;

static INLINE void d3d9_renderchain_set_vertices_on_change(
 d3d9_renderchain_t *chain,
 struct shader_pass *pass,
 unsigned width, unsigned height,
 unsigned out_width, unsigned out_height,
 unsigned vp_width, unsigned vp_height,
 unsigned rotation
 )
{
 struct D3D9Vertex vert[4];
 unsigned i;
 void *verts = NULL;
 const struct 
 LinkInfo *info = (const struct LinkInfo*)&pass->info;
 float _u = (float)(width) / info->tex_w;
 float _v = (float)(height) / info->tex_h;

 pass->last_width = width;
 pass->last_height = height;

 vert[0].x = 0.0f;
 vert[0].y = out_height;
 vert[0].z = 0.5f;
 vert[0].u = 0.0f;
 vert[0].v = 0.0f;
 vert[0].lut_u = 0.0f;
 vert[0].lut_v = 0.0f;
 vert[0].r = 1.0f;
 vert[0].g = 1.0f;
 vert[0].b = 1.0f;
 vert[0].a = 1.0f;

 vert[1].x = out_width;
 vert[1].y = out_height;
 vert[1].z = 0.5f;
 vert[1].u = _u;
 vert[1].v = 0.0f;
 vert[1].lut_u = 1.0f;
 vert[1].lut_v = 0.0f;
 vert[1].r = 1.0f;
 vert[1].g = 1.0f;
 vert[1].b = 1.0f;
 vert[1].a = 1.0f;

 vert[2].x = 0.0f;
 vert[2].y = 0.0f;
 vert[2].z = 0.5f;
 vert[2].u = 0.0f;
 vert[2].v = _v;
 vert[2].lut_u = 0.0f;
 vert[2].lut_v = 1.0f;
 vert[2].r = 1.0f;
 vert[2].g = 1.0f;
 vert[2].b = 1.0f;
 vert[2].a = 1.0f;

 vert[3].x = out_width;
 vert[3].y = 0.0f;
 vert[3].z = 0.5f;
 vert[3].u = _u;
 vert[3].v = _v;
 vert[3].lut_u = 1.0f;
 vert[3].lut_v = 1.0f;
 vert[3].r = 1.0f;
 vert[3].g = 1.0f;
 vert[3].b = 1.0f;
 vert[3].a = 1.0f;

 /* Align texels and vertices.
 *
 * Fixes infamous 'half-texel offset' issue of D3D9
 * http://msdn.microsoft.com/en-us/library/bb219690%28VS.85%29.aspx.
 */
 for (i = 0; i < 4; i++)
 {
 vert[i].x -= 0.5f;
 vert[i].y += 0.5f;
 }

 verts = d3d9_vertex_buffer_lock(pass->vertex_buf);
 memcpy(verts, vert, sizeof(vert));
 d3d9_vertex_buffer_unlock(pass->vertex_buf);
}

static INLINE bool d3d9_renderchain_add_pass(d3d9_renderchain_t *chain,
 struct shader_pass *pass,
 const struct LinkInfo *info)
{
 LPDIRECT3DTEXTURE9 tex;
 LPDIRECT3DVERTEXBUFFER9 vertbuf = (LPDIRECT3DVERTEXBUFFER9)
 d3d9_vertex_buffer_new(chain->dev,
 4 * sizeof(struct D3D9Vertex),
 D3DUSAGE_WRITEONLY, 0, D3DPOOL_DEFAULT, NULL);

 if (!vertbuf)
 return false;

 pass->vertex_buf = vertbuf;

 tex = (LPDIRECT3DTEXTURE9)d3d9_texture_new(
 chain->dev,
 NULL,
 info->tex_w,
 info->tex_h,
 1,
 D3DUSAGE_RENDERTARGET,
 chain->passes->data[
 chain->passes->count - 1].info.pass->fbo.fp_fbo
 ? D3DFMT_A32B32G32R32F : d3d9_get_argb8888_format(),
 D3DPOOL_DEFAULT, 0, 0, 0, NULL, NULL, false);

 if (!tex)
 return false;

 pass->tex = tex;

 d3d9_set_texture(chain->dev, 0, pass->tex);
 d3d9_set_sampler_address_u(chain->dev, 0, D3DTADDRESS_BORDER);
 d3d9_set_sampler_address_v(chain->dev, 0, D3DTADDRESS_BORDER);
 d3d9_set_texture(chain->dev, 0, NULL);

 shader_pass_vector_list_append(chain->passes, *pass);

 return true;
}

static INLINE bool d3d9_renderchain_add_lut(d3d9_renderchain_t *chain,
 const char *id, const char *path, bool smooth)
{
 struct lut_info info;
 LPDIRECT3DTEXTURE9 lut = (LPDIRECT3DTEXTURE9)
 d3d9_texture_new(
 chain->dev,
 path,
 D3D_DEFAULT_NONPOW2,
 D3D_DEFAULT_NONPOW2,
 0,
 0,
 ((D3DFORMAT)-3), /* D3DFMT_FROM_FILE */
 D3DPOOL_MANAGED,
 smooth ? D3D_FILTER_LINEAR : D3D_FILTER_POINT,
 0,
 0,
 NULL,
 NULL,
 false
 );

 RARCH_LOG("[D3D9]: LUT texture loaded: %s.\n", path);

 info.tex = lut;
 info.smooth = smooth;
 strlcpy(info.id, id, sizeof(info.id));
 if (!lut)
 return false;

 d3d9_set_texture(chain->dev, 0, lut);
 d3d9_set_sampler_address_u(chain->dev, 0, D3DTADDRESS_BORDER);
 d3d9_set_sampler_address_v(chain->dev, 0, D3DTADDRESS_BORDER);
 d3d9_set_texture(chain->dev, 0, NULL);

 lut_info_vector_list_append(chain->luts, info);

 return true;
}

static INLINE void d3d9_renderchain_destroy_passes_and_luts(
 d3d9_renderchain_t *chain)
{
 if (chain->passes)
 {
 unsigned i;

 for (i = 0; i < chain->passes->count; i++)
 {
 if (chain->passes->data[i].attrib_map)
 free(chain->passes->data[i].attrib_map);
 }

 shader_pass_vector_list_free(chain->passes);

 chain->passes = NULL;
 }

 lut_info_vector_list_free(chain->luts);
 unsigned_vector_list_free(chain->bound_tex);
 unsigned_vector_list_free(chain->bound_vert);

 chain->luts = NULL;
 chain->bound_tex = NULL;
 chain->bound_vert = NULL;
}

static INLINE void d3d9_renderchain_add_lut_internal(
 d3d9_renderchain_t *chain,
 unsigned index, unsigned i)
{
 d3d9_set_texture(chain->dev, index, chain->luts->data[i].tex);
 d3d9_set_sampler_magfilter(chain->dev, index,
 d3d_translate_filter(chain->luts->data[i].smooth ? RARCH_FILTER_LINEAR : RARCH_FILTER_NEAREST));
 d3d9_set_sampler_minfilter(chain->dev, index,
 d3d_translate_filter(chain->luts->data[i].smooth ? RARCH_FILTER_LINEAR : RARCH_FILTER_NEAREST));
 d3d9_set_sampler_address_u(chain->dev, index, D3DTADDRESS_BORDER);
 d3d9_set_sampler_address_v(chain->dev, index, D3DTADDRESS_BORDER);
 unsigned_vector_list_append(chain->bound_tex, index);
}

static INLINE void d3d9_renderchain_start_render(d3d9_renderchain_t *chain)
{
 chain->passes->data[0].tex = chain->prev.tex[
 chain->prev.ptr];
 chain->passes->data[0].vertex_buf = chain->prev.vertex_buf[
 chain->prev.ptr];
 chain->passes->data[0].last_width = chain->prev.last_width[
 chain->prev.ptr];
 chain->passes->data[0].last_height = chain->prev.last_height[
 chain->prev.ptr];
}

static INLINE void d3d9_renderchain_end_render(d3d9_renderchain_t *chain)
{
 chain->prev.last_width[chain->prev.ptr] = chain->passes->data[0].last_width;
 chain->prev.last_height[chain->prev.ptr] = chain->passes->data[0].last_height;
 chain->prev.ptr = (chain->prev.ptr + 1) & TEXTURESMASK;
}

static INLINE void d3d9_renderchain_unbind_all(d3d9_renderchain_t *chain)
{
 unsigned i;

 /* Have to be a bit anal about it.
 * Render targets hate it when they have filters apparently.
 */
 for (i = 0; i < chain->bound_tex->count; i++)
 {
 d3d9_set_sampler_minfilter(chain->dev,
 chain->bound_tex->data[i], D3DTEXF_POINT);
 d3d9_set_sampler_magfilter(chain->dev,
 chain->bound_tex->data[i], D3DTEXF_POINT);
 d3d9_set_texture(chain->dev,
 chain->bound_tex->data[i], NULL);
 }

 for (i = 0; i < chain->bound_vert->count; i++)
 d3d9_set_stream_source(chain->dev,
 chain->bound_vert->data[i], 0, 0, 0);

 if (chain->bound_tex)
 {
 unsigned_vector_list_free(chain->bound_tex);
 chain->bound_tex = unsigned_vector_list_new();
 }

 if (chain->bound_vert)
 {
 unsigned_vector_list_free(chain->bound_vert);
 chain->bound_vert = unsigned_vector_list_new();
 }
}

static INLINE bool d3d9_renderchain_set_pass_size(
 LPDIRECT3DDEVICE9 dev,
 struct shader_pass *pass,
 struct shader_pass *pass2,
 unsigned width, unsigned height)
{
 if (width != pass->info.tex_w || height != pass->info.tex_h)
 {
 d3d9_texture_free(pass->tex);

 pass->info.tex_w = width;
 pass->info.tex_h = height;
 pass->pool = D3DPOOL_DEFAULT;
 pass->tex = (LPDIRECT3DTEXTURE9)
 d3d9_texture_new(dev, NULL,
 width, height, 1,
 D3DUSAGE_RENDERTARGET,
 pass2->info.pass->fbo.fp_fbo ?
 D3DFMT_A32B32G32R32F : d3d9_get_argb8888_format(),
 D3DPOOL_DEFAULT, 0, 0, 0,
 NULL, NULL, false);

 if (!pass->tex)
 return false;

 d3d9_set_texture(dev, 0, pass->tex);
 d3d9_set_sampler_address_u(dev, 0, D3DTADDRESS_BORDER);
 d3d9_set_sampler_address_v(dev, 0, D3DTADDRESS_BORDER);
 d3d9_set_texture(dev, 0, NULL);
 }

 return true;
}

static INLINE void d3d9_recompute_pass_sizes(
 LPDIRECT3DDEVICE9 dev,
 d3d9_renderchain_t *chain,
 d3d9_video_t *d3d)
{
 unsigned i;
 struct LinkInfo link_info;
 unsigned input_scale = d3d->video_info.input_scale 
 * RARCH_SCALE_BASE;
 unsigned current_width = input_scale;
 unsigned current_height = input_scale;
 unsigned out_width = 0;
 unsigned out_height = 0;

 link_info.pass = &d3d->shader.pass[0];
 link_info.tex_w = current_width;
 link_info.tex_h = current_height;


 if (!d3d9_renderchain_set_pass_size(dev,
 (struct shader_pass*)&chain->passes->data[0],
 (struct shader_pass*)&chain->passes->data[
 chain->passes->count - 1],
 current_width, current_height))
 {
 RARCH_ERR("[D3D9]: Failed to set pass size.\n");
 return;
 }

 for (i = 1; i < d3d->shader.passes; i++)
 {
 d3d9_convert_geometry(
 &link_info,
 &out_width, &out_height,
 current_width, current_height, &d3d->final_viewport);

 link_info.tex_w = next_pow2(out_width);
 link_info.tex_h = next_pow2(out_height);

 if (!d3d9_renderchain_set_pass_size(dev,
 (struct shader_pass*)&chain->passes->data[i],
 (struct shader_pass*)&chain->passes->data[
 chain->passes->count - 1],
 link_info.tex_w, link_info.tex_h))
 {
 RARCH_ERR("[D3D9]: Failed to set pass size.\n");
 return;
 }

 current_width = out_width;
 current_height = out_height;

 link_info.pass = &d3d->shader.pass[i];
 }
}

static INLINE void d3d9_init_renderchain(d3d9_renderchain_t *chain)
{
 chain->passes = shader_pass_vector_list_new();
 chain->luts = lut_info_vector_list_new();
 chain->bound_tex = unsigned_vector_list_new();
 chain->bound_vert = unsigned_vector_list_new();
}

static INLINE void d3d9_renderchain_blit_to_texture(
 LPDIRECT3DTEXTURE9 tex,
 const void *frame,
 unsigned tex_width, unsigned tex_height,
 unsigned width, unsigned height,
 unsigned last_width, unsigned last_height,
 unsigned pitch, unsigned pixel_size)
{
 D3DLOCKED_RECT d3dlr = {0, NULL};

 if (
 (last_width != width || last_height != height)
 )
 {
 d3d9_lock_rectangle(tex, 0, &d3dlr,
 NULL, tex_height, D3DLOCK_NOSYSLOCK);
 d3d9_lock_rectangle_clear(tex, 0, &d3dlr,
 NULL, tex_height, D3DLOCK_NOSYSLOCK);
 }

 if (d3d9_lock_rectangle(tex, 0, &d3dlr, NULL, 0, 0))
 {
 d3d9_texture_blit(pixel_size, tex,
 &d3dlr, frame, width, height, pitch);
 d3d9_unlock_rectangle(tex);
 }
}

RETRO_END_DECLS

#endif