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Fixes to shader rendering. Patch from bit.

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This commit is contained in:
SarahW 2017-08-15 21:15:29 +01:00
commit 9eae781645
4 changed files with 2205 additions and 2184 deletions
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3
src/wx-glsl.h
View file

@ -52,6 +52,7 @@ struct shader_fbo {
int id;
struct shader_texture texture;
int srgb;
int mipmap_input;
};
struct shader_prev {
@ -138,6 +139,8 @@ struct glsl_shader {
int has_prev;
float shader_refresh_rate;
int input_filter_linear;
};
typedef struct glsl_t {

4
src/wx-glslp-parser.c
View file

@ -184,6 +184,8 @@ glslp_t* glslp_parse(const char* f)
wx_config_get_int(cfg, "shaders", &glslp->num_shaders, 0);
wx_config_get_bool(cfg, "filter_linear0", &glslp->input_filter_linear, -1);
for (i = 0; i < glslp->num_shaders; ++i)
{
struct shader* shader = &glslp->shaders[i];
@ -212,7 +214,7 @@ glslp_t* glslp_parse(const char* f)
snprintf(s, sizeof(s)-1, "alias%d", i);
wx_config_get_string(cfg, s, shader->alias, sizeof(shader->alias), 0);
snprintf(s, sizeof(s)-1, "filter_linear%d", i);
snprintf(s, sizeof(s)-1, "filter_linear%d", i+1);
wx_config_get_bool(cfg, s, &shader->filter_linear, 0);
snprintf(s, sizeof(s)-1, "wrap_mode%d", i);

2
src/wx-glslp-parser.h
View file

@ -45,6 +45,8 @@ typedef struct glslp_t {
int num_parameters;
struct parameter parameters[MAX_PARAMETERS];
int input_filter_linear;
} glslp_t;
void get_glslp_name(const char* f, char* s, int size);

60
src/wx-sdl2-video-gl3.c
View file

@ -54,6 +54,8 @@ extern int video_vsync;
extern int video_focus_dim;
extern int video_refresh_rate;
static int glsl_version[2];
const char* vertex_shader_default_tex_src =
"#version 130\n"
"\n"
@ -123,25 +125,27 @@ static int next_pow2(unsigned int n)
static int compile_shader(GLenum shader_type, const char* prepend, const char* program, int* dst)
{
const char* source[3];
source[0] = "";
source[1] = prepend ? prepend : "";
source[2] = 0;
char version[50];
if (strstr(program, "#version"))
{
char* line = strchr(program, '\n');
int len = (line-program)+1;
if (len >= sizeof(version)-1) len = sizeof(version)-1;
strncpy(version, program, len);
version[len] = 0;
source[0] = version;
source[2] = line;
}
int ver = 0;
char *version_loc = strstr(program, "#version");
if (version_loc)
ver = (int)strtol(version_loc + 8, (char**)&program, 10);
else
{
// source[0] = "#version 130\n";
source[2] = program;
ver = glsl_version[0] * 100 + glsl_version[1] * 10;
if (ver == 300)
ver = 130;
else if (ver == 310)
ver = 140;
else if (ver == 320)
ver = 150;
}
sprintf(version, "#version %d\n", ver);
source[0] = version;
source[1] = prepend ? prepend : "";
source[2] = program;
pclog("GLSL version %d\n", ver);
GLuint shader = glw->glCreateShader(shader_type);
glw->glShaderSource(shader, 3, source, NULL);
@ -492,6 +496,9 @@ static void create_scene_shader()
struct shader scene_shader_conf;
memset(&scene_shader_conf, 0, sizeof(struct shader));
create_default_shader_tex(&active_shader->scene);
scene_shader_conf.filter_linear = video_scale_mode;
if (active_shader->num_shaders > 0 && active_shader->shaders[0].input_filter_linear >= 0)
scene_shader_conf.filter_linear = active_shader->shaders[0].input_filter_linear;
setup_fbo(&scene_shader_conf, &active_shader->scene.fbo);
memset(&scene_shader_conf, 0, sizeof(struct shader));
@ -605,6 +612,8 @@ static glsl_t* load_glslp(glsl_t* glsl, int num_shader, const char* f)
if (!failed)
{
gshader->input_filter_linear = p->input_filter_linear;
gshader->num_parameters = p->num_parameters;
for (j = 0; j < gshader->num_parameters; ++j)
memcpy(&gshader->parameters[j], &p->parameters[j], sizeof(struct shader_parameter));
@ -643,6 +652,7 @@ static glsl_t* load_glslp(glsl_t* glsl, int num_shader, const char* f)
break;
}
pass->frame_count_mod = shader->frame_count_mod;
pass->fbo.mipmap_input = shader->mipmap_input;
glw->glGenVertexArrays(1, (GLuint *)&pass->vertex_array);
find_uniforms(gshader, i);
@ -663,7 +673,14 @@ static glsl_t* load_glslp(glsl_t* glsl, int num_shader, const char* f)
}
}
else
{
/* check if next shaders' first pass wants the input mipmapped (will this ever happen?) */
pass->fbo.texture.mipmap = glsl->shaders[num_shader+1].num_passes > 0 && glsl->shaders[num_shader+1].passes[0].fbo.mipmap_input;
/* check if next shader wants the output of this pass to be filtered */
if (glsl->shaders[num_shader+1].num_passes > 0 && glsl->shaders[num_shader+1].input_filter_linear >= 0)
shader->filter_linear = glsl->shaders[num_shader+1].input_filter_linear;
setup_fbo(shader, &pass->fbo);
}
}
else
{
@ -706,7 +723,7 @@ static glsl_t* load_shaders(int num, char shaders[MAX_USER_SHADERS][512])
glsl->num_shaders = num;
int failed = 0;
for (i = 0; i < num; ++i)
for (i = num-1; i >= 0; --i)
{
const char* f = shaders[i];
if (f && strlen(f))
@ -752,9 +769,6 @@ int gl3_init(SDL_Window* window, sdl_render_driver requested_render_driver, BITM
strcpy(current_render_driver_name, requested_render_driver.name);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_COMPATIBILITY);
context = SDL_GL_CreateContext(window);
@ -767,9 +781,10 @@ int gl3_init(SDL_Window* window, sdl_render_driver requested_render_driver, BITM
SDL_GL_SetSwapInterval(video_vsync ? 1 : 0);
pclog("OpenGL information: [%s] %s (%s)\n", glGetString(GL_VENDOR), glGetString(GL_RENDERER), glGetString(GL_VERSION));
int version = -1;
glGetIntegerv(GL_MAJOR_VERSION, &version);
if (version < 3)
glsl_version[0] = glsl_version[1] = -1;
glGetIntegerv(GL_MAJOR_VERSION, &glsl_version[0]);
glGetIntegerv(GL_MINOR_VERSION, &glsl_version[1]);
if (glsl_version[0] < 3)
{
pclog("OpenGL 3.0 is not available.");
return SDL_FALSE;
@ -1627,7 +1642,6 @@ int gl3_renderer_available(struct sdl_render_driver* driver)
{
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_COMPATIBILITY);
SDL_GLContext context = SDL_GL_CreateContext(window);
if (context)