static void gl_update_input_size(gl_t *gl, unsigned width, unsigned height, unsigned pitch)
{
// Res change. Need to clear out texture.
if ((width != gl->last_width[gl->tex_index] || height != gl->last_height[gl->tex_index]) && gl->empty_buf)
{
gl->last_width[gl->tex_index] = width;
gl->last_height[gl->tex_index] = height;
glPixelStorei(GL_UNPACK_ALIGNMENT, get_alignment(pitch));
glPixelStorei(GL_UNPACK_ROW_LENGTH, gl->tex_w);
glTexSubImage2D(GL_TEXTURE_2D,
0, 0, 0, gl->tex_w, gl->tex_h, gl->texture_type,
gl->texture_fmt, gl->empty_buf);
GLfloat xamt = (GLfloat)width / gl->tex_w;
GLfloat yamt = (GLfloat)height / gl->tex_h;
set_texture_coords(gl->tex_coords, xamt, yamt);
}
// We might have used different texture coordinates last frame. Edge case if resolution changes very rapidly.
else if (width != gl->last_width[(gl->tex_index - 1) & TEXTURES_MASK] ||
height != gl->last_height[(gl->tex_index - 1) & TEXTURES_MASK])
{
GLfloat xamt = (GLfloat)width / gl->tex_w;
GLfloat yamt = (GLfloat)height / gl->tex_h;
set_texture_coords(gl->tex_coords, xamt, yamt);
}
}
void gl_renderchain_render(gl_t *gl,
uint64_t frame_count,
const struct video_tex_info *tex_info,
const struct video_tex_info *feedback_info)
{
unsigned mip_level;
video_shader_ctx_mvp_t mvp;
video_shader_ctx_coords_t coords;
video_shader_ctx_params_t params;
video_shader_ctx_info_t shader_info;
unsigned width, height;
const struct video_fbo_rect *prev_rect;
struct video_tex_info *fbo_info;
struct video_tex_info fbo_tex_info[GFX_MAX_SHADERS];
int i;
GLfloat xamt, yamt;
unsigned fbo_tex_info_cnt = 0;
GLfloat fbo_tex_coords[8] = {0.0f};
video_driver_get_size(&width, &height);
/* Render the rest of our passes. */
gl->coords.tex_coord = fbo_tex_coords;
/* Calculate viewports, texture coordinates etc,
* and render all passes from FBOs, to another FBO. */
for (i = 1; i < gl->fbo_pass; i++)
{
video_shader_ctx_mvp_t mvp;
video_shader_ctx_coords_t coords;
video_shader_ctx_params_t params;
const struct video_fbo_rect *rect = &gl->fbo_rect[i];
prev_rect = &gl->fbo_rect[i - 1];
fbo_info = &fbo_tex_info[i - 1];
xamt = (GLfloat)prev_rect->img_width / prev_rect->width;
yamt = (GLfloat)prev_rect->img_height / prev_rect->height;
set_texture_coords(fbo_tex_coords, xamt, yamt);
fbo_info->tex = gl->fbo_texture[i - 1];
fbo_info->input_size[0] = prev_rect->img_width;
fbo_info->input_size[1] = prev_rect->img_height;
fbo_info->tex_size[0] = prev_rect->width;
fbo_info->tex_size[1] = prev_rect->height;
memcpy(fbo_info->coord, fbo_tex_coords, sizeof(fbo_tex_coords));
fbo_tex_info_cnt++;
glBindFramebuffer(RARCH_GL_FRAMEBUFFER, gl->fbo[i]);
shader_info.data = gl;
shader_info.idx = i + 1;
shader_info.set_active = true;
video_shader_driver_use(&shader_info);
glBindTexture(GL_TEXTURE_2D, gl->fbo_texture[i - 1]);
mip_level = i + 1;
if (video_shader_driver_mipmap_input(&mip_level)
&& gl_check_capability(GL_CAPS_MIPMAP))
glGenerateMipmap(GL_TEXTURE_2D);
glClear(GL_COLOR_BUFFER_BIT);
/* Render to FBO with certain size. */
gl_set_viewport(gl, rect->img_width, rect->img_height, true, false);
params.data = gl;
params.width = prev_rect->img_width;
params.height = prev_rect->img_height;
params.tex_width = prev_rect->width;
params.tex_height = prev_rect->height;
params.out_width = gl->vp.width;
params.out_height = gl->vp.height;
params.frame_counter = (unsigned int)frame_count;
params.info = tex_info;
params.prev_info = gl->prev_info;
params.feedback_info = feedback_info;
params.fbo_info = fbo_tex_info;
params.fbo_info_cnt = fbo_tex_info_cnt;
video_shader_driver_set_parameters(¶ms);
gl->coords.vertices = 4;
coords.handle_data = NULL;
coords.data = &gl->coords;
video_shader_driver_set_coords(&coords);
mvp.data = gl;
mvp.matrix = &gl->mvp;
video_shader_driver_set_mvp(&mvp);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
}
#if defined(GL_FRAMEBUFFER_SRGB) && !defined(HAVE_OPENGLES)
if (gl->has_srgb_fbo)
glDisable(GL_FRAMEBUFFER_SRGB);
#endif
/* Render our last FBO texture directly to screen. */
prev_rect = &gl->fbo_rect[gl->fbo_pass - 1];
xamt = (GLfloat)prev_rect->img_width / prev_rect->width;
yamt = (GLfloat)prev_rect->img_height / prev_rect->height;
set_texture_coords(fbo_tex_coords, xamt, yamt);
/* Push final FBO to list. */
fbo_info = &fbo_tex_info[gl->fbo_pass - 1];
fbo_info->tex = gl->fbo_texture[gl->fbo_pass - 1];
fbo_info->input_size[0] = prev_rect->img_width;
fbo_info->input_size[1] = prev_rect->img_height;
fbo_info->tex_size[0] = prev_rect->width;
fbo_info->tex_size[1] = prev_rect->height;
memcpy(fbo_info->coord, fbo_tex_coords, sizeof(fbo_tex_coords));
fbo_tex_info_cnt++;
/* Render our FBO texture to back buffer. */
gl_bind_backbuffer();
shader_info.data = gl;
shader_info.idx = gl->fbo_pass + 1;
shader_info.set_active = true;
video_shader_driver_use(&shader_info);
glBindTexture(GL_TEXTURE_2D, gl->fbo_texture[gl->fbo_pass - 1]);
mip_level = gl->fbo_pass + 1;
if (video_shader_driver_mipmap_input(&mip_level)
&& gl_check_capability(GL_CAPS_MIPMAP))
glGenerateMipmap(GL_TEXTURE_2D);
glClear(GL_COLOR_BUFFER_BIT);
gl_set_viewport(gl, width, height, false, true);
params.data = gl;
params.width = prev_rect->img_width;
params.height = prev_rect->img_height;
params.tex_width = prev_rect->width;
params.tex_height = prev_rect->height;
params.out_width = gl->vp.width;
params.out_height = gl->vp.height;
params.frame_counter = (unsigned int)frame_count;
params.info = tex_info;
params.prev_info = gl->prev_info;
params.feedback_info = feedback_info;
params.fbo_info = fbo_tex_info;
params.fbo_info_cnt = fbo_tex_info_cnt;
video_shader_driver_set_parameters(¶ms);
gl->coords.vertex = gl->vertex_ptr;
gl->coords.vertices = 4;
coords.handle_data = NULL;
coords.data = &gl->coords;
video_shader_driver_set_coords(&coords);
mvp.data = gl;
mvp.matrix = &gl->mvp;
video_shader_driver_set_mvp(&mvp);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
gl->coords.tex_coord = gl->tex_info.coord;
}
static void gl_frame_fbo(gl_t *gl, const struct gl_tex_info *tex_info)
{
GLfloat fbo_tex_coords[8] = {0.0f};
// Render the rest of our passes.
glTexCoordPointer(2, GL_FLOAT, 0, fbo_tex_coords);
// It's kinda handy ... :)
const struct gl_fbo_rect *prev_rect;
const struct gl_fbo_rect *rect;
struct gl_tex_info *fbo_info;
struct gl_tex_info fbo_tex_info[MAX_SHADERS];
unsigned fbo_tex_info_cnt = 0;
// Calculate viewports, texture coordinates etc, and render all passes from FBOs, to another FBO.
for (int i = 1; i < gl->fbo_pass; i++)
{
prev_rect = &gl->fbo_rect[i - 1];
rect = &gl->fbo_rect[i];
fbo_info = &fbo_tex_info[i - 1];
GLfloat xamt = (GLfloat)prev_rect->img_width / prev_rect->width;
GLfloat yamt = (GLfloat)prev_rect->img_height / prev_rect->height;
set_texture_coords(fbo_tex_coords, xamt, yamt);
fbo_info->tex = gl->fbo_texture[i - 1];
fbo_info->input_size[0] = prev_rect->img_width;
fbo_info->input_size[1] = prev_rect->img_height;
fbo_info->tex_size[0] = prev_rect->width;
fbo_info->tex_size[1] = prev_rect->height;
memcpy(fbo_info->coord, fbo_tex_coords, sizeof(fbo_tex_coords));
pglBindFramebuffer(GL_FRAMEBUFFER, gl->fbo[i]);
gl_shader_use(i + 1);
glBindTexture(GL_TEXTURE_2D, gl->fbo_texture[i - 1]);
glClear(GL_COLOR_BUFFER_BIT);
// Render to FBO with certain size.
gl_set_viewport(gl, rect->img_width, rect->img_height, true, false);
gl_shader_set_params(prev_rect->img_width, prev_rect->img_height,
prev_rect->width, prev_rect->height,
gl->vp_width, gl->vp_height, gl->frame_count,
tex_info, gl->prev_info, fbo_tex_info, fbo_tex_info_cnt);
glDrawArrays(GL_QUADS, 0, 4);
fbo_tex_info_cnt++;
}
// Render our last FBO texture directly to screen.
prev_rect = &gl->fbo_rect[gl->fbo_pass - 1];
GLfloat xamt = (GLfloat)prev_rect->img_width / prev_rect->width;
GLfloat yamt = (GLfloat)prev_rect->img_height / prev_rect->height;
set_texture_coords(fbo_tex_coords, xamt, yamt);
// Render our FBO texture to back buffer.
pglBindFramebuffer(GL_FRAMEBUFFER, 0);
gl_shader_use(gl->fbo_pass + 1);
glBindTexture(GL_TEXTURE_2D, gl->fbo_texture[gl->fbo_pass - 1]);
glClear(GL_COLOR_BUFFER_BIT);
gl->render_to_tex = false;
gl_set_viewport(gl, gl->win_width, gl->win_height, false, true);
gl_shader_set_params(prev_rect->img_width, prev_rect->img_height,
prev_rect->width, prev_rect->height,
gl->vp_width, gl->vp_height, gl->frame_count,
tex_info, gl->prev_info, fbo_tex_info, fbo_tex_info_cnt);
glVertexPointer(2, GL_FLOAT, 0, vertex_ptr);
glDrawArrays(GL_QUADS, 0, 4);
glTexCoordPointer(2, GL_FLOAT, 0, gl->tex_coords);
}
