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out and monitor in defined shaders

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klemek
2025-09-18 23:57:51 +02:00
parent 61e70f4913
commit b00b0d0f33
6 changed files with 96 additions and 110 deletions
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src/shaders.c
+54 -65
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@@ -62,11 +62,11 @@ static void init_textures(ShaderProgram *program, Context context) {
static void init_framebuffers(ShaderProgram *program) {
unsigned int i, j;
program->frame_buffers = malloc(program->frag_count * sizeof(GLuint));
program->frame_buffers = malloc(program->framebuffer_count * sizeof(GLuint));
glGenFramebuffers(program->frag_count, program->frame_buffers);
glGenFramebuffers(program->framebuffer_count, program->frame_buffers);
for (i = 0; i < program->frag_count; i++) {
for (i = 0; i < program->framebuffer_count; i++) {
glBindFramebuffer(GL_FRAMEBUFFER, program->frame_buffers[i]);
for (j = 0; j < TEX_COUNT; j++) {
@@ -111,18 +111,6 @@ static void init_shaders(ShaderProgram *program, File *fragment_shaders) {
program->error |= !compile_shader(
program->vertex_shader, "internal vertex shader", vertex_shader_text);
// compile output fragment shader
program->output_shader = glCreateShader(GL_FRAGMENT_SHADER);
program->error |=
!compile_shader(program->output_shader,
"internal fragment shader (output)", output_shader_text);
// compile output fragment shader
program->monitor_shader = glCreateShader(GL_FRAGMENT_SHADER);
program->error |= !compile_shader(program->monitor_shader,
"internal fragment shader (monitor)",
monitor_shader_text);
program->fragment_shaders = malloc(program->frag_count * sizeof(GLuint));
// compile fragment shaders
@@ -139,49 +127,42 @@ static void init_shaders(ShaderProgram *program, File *fragment_shaders) {
}
static void init_single_program(ShaderProgram *program, unsigned int i,
ConfigFile shader_config, bool output) {
ConfigFile shader_config) {
unsigned int j;
char name[32];
program->programs[i] = glCreateProgram();
glAttachShader(program->programs[i], program->vertex_shader);
if (output) {
glAttachShader(program->programs[i], program->monitor_shader); // TODO tmp
} else {
glAttachShader(program->programs[i], program->fragment_shaders[i]);
}
glAttachShader(program->programs[i], program->fragment_shaders[i]);
glLinkProgram(program->programs[i]);
// create uniforms pointers
if (!output) {
program->itime_locations[i] = glGetUniformLocation(
program->programs[i],
config_file_get_str(shader_config, "UNIFORM_TIME", "iTime"));
program->itempo_locations[i] = glGetUniformLocation(
program->programs[i],
config_file_get_str(shader_config, "UNIFORM_TEMPO", "iTempo"));
program->ifps_locations[i] = glGetUniformLocation(
program->programs[i],
config_file_get_str(shader_config, "UNIFORM_FPS", "iFPS"));
program->ires_locations[i] = glGetUniformLocation(
program->programs[i],
config_file_get_str(shader_config, "UNIFORM_RESOLUTION",
"iResolution"));
program->itime_locations[i] = glGetUniformLocation(
program->programs[i],
config_file_get_str(shader_config, "UNIFORM_TIME", "iTime"));
program->itempo_locations[i] = glGetUniformLocation(
program->programs[i],
config_file_get_str(shader_config, "UNIFORM_TEMPO", "iTempo"));
program->ifps_locations[i] = glGetUniformLocation(
program->programs[i],
config_file_get_str(shader_config, "UNIFORM_FPS", "iFPS"));
program->ires_locations[i] = glGetUniformLocation(
program->programs[i],
config_file_get_str(shader_config, "UNIFORM_RESOLUTION", "iResolution"));
for (j = 0; j < SUB_COUNT; j++) {
sprintf(name, "src_%d", j + 1);
program->sub_src_indexes[i][j] =
// TODO sub substitution
for (j = 0; j < SUB_COUNT; j++) {
sprintf(name, "src_%d", j + 1);
program->sub_src_indexes[i][j] =
glGetSubroutineIndex(program->programs[i], GL_FRAGMENT_SHADER, name);
sprintf(name, "fx_%d", j + 1);
program->sub_fx_indexes[i][j] =
glGetSubroutineIndex(program->programs[i], GL_FRAGMENT_SHADER, name);
if (j < 2) {
sprintf(name, "mix_%d", j + 1);
program->sub_mix_indexes[i][j] =
glGetSubroutineIndex(program->programs[i], GL_FRAGMENT_SHADER, name);
sprintf(name, "fx_%d", j + 1);
program->sub_fx_indexes[i][j] =
glGetSubroutineIndex(program->programs[i], GL_FRAGMENT_SHADER, name);
if (j < 2) {
sprintf(name, "mix_%d", j + 1);
program->sub_mix_indexes[i][j] = glGetSubroutineIndex(
program->programs[i], GL_FRAGMENT_SHADER, name);
}
}
}
@@ -220,8 +201,8 @@ static void init_programs(ShaderProgram *program, ConfigFile shader_config) {
malloc(program->frag_count * sizeof(GLuint));
}
for (i = 0; i < program->frag_count + 1; i++) {
init_single_program(program, i, shader_config, i == program->frag_count);
for (i = 0; i < program->frag_count; i++) {
init_single_program(program, i, shader_config);
}
}
@@ -241,6 +222,11 @@ ShaderProgram shaders_init(File *fragment_shaders, ConfigFile shader_config,
program.last_width = context.width;
program.last_height = context.height;
program.frag_count = config_file_get_int(shader_config, "FRAG_COUNT", 6);
program.framebuffer_count = program.frag_count - 2;
program.frag_output_index =
config_file_get_int(shader_config, "FRAG_OUT", 0) - 1;
program.frag_monitor_index =
config_file_get_int(shader_config, "FRAG_MONITOR", 0) - 1;
init_textures(&program, context);
@@ -313,22 +299,21 @@ static void use_program(ShaderProgram program, int i, bool output,
glClear(GL_COLOR_BUFFER_BIT);
} else {
// use memory framebuffer
glBindFramebuffer(GL_FRAMEBUFFER, program.frame_buffers[0]);
// set fragment uniforms
glUniform1f(program.itime_locations[i], (const GLfloat)context.time);
glUniform1f(program.itempo_locations[i],
(const GLfloat)120.0f); // TODO TMP
glUniform1i(program.ifps_locations[i], (const GLint)context.fps);
glUniform2fv(program.ires_locations[i], 1, (const GLfloat *)&resolution);
// TODO tmp
subroutines[0] = program.sub_src_indexes[i][i == 0 ? 1 : 2];
subroutines[1] = program.sub_fx_indexes[i][0];
subroutines[2] = program.sub_mix_indexes[i][0];
glUniformSubroutinesuiv(GL_FRAGMENT_SHADER, 3, subroutines);
glBindFramebuffer(GL_FRAMEBUFFER, program.frame_buffers[i]);
}
// set fragment uniforms
glUniform1f(program.itime_locations[i], (const GLfloat)context.time);
glUniform1f(program.itempo_locations[i],
(const GLfloat)120.0f); // TODO TMP
glUniform1i(program.ifps_locations[i], (const GLint)context.fps);
glUniform2fv(program.ires_locations[i], 1, (const GLfloat *)&resolution);
// TODO tmp
subroutines[0] = program.sub_src_indexes[i][i == 0 ? 1 : 2];
subroutines[1] = program.sub_fx_indexes[i][0];
subroutines[2] = program.sub_mix_indexes[i][0];
glUniformSubroutinesuiv(GL_FRAGMENT_SHADER, 3, subroutines);
// set GL_TEXTURE(X) to uniform sampler2D texX
for (j = 0; j < TEX_COUNT; j++) {
@@ -347,6 +332,10 @@ void shaders_apply(ShaderProgram program, Context context) {
update_viewport(program, context);
for (i = 0; i < program.frag_count + 1; i++) {
use_program(program, i, i == program.frag_count, context);
if (i != program.frag_output_index && i != program.frag_monitor_index) {
use_program(program, i, false, context);
}
}
use_program(program, program.frag_output_index, true, context);
}