Trying something crazy --- maybe
This commit is contained in:
Allen Webster
parent
ac0bd78485
commit
99dc2fc570
|
|
@ -57,304 +57,305 @@ internal void
|
|||
#ifdef OS_LINUX
|
||||
gl__error_callback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const char *message, const void *userParam){
|
||||
#else
|
||||
gl__error_callback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, char *message, void *userParam){
|
||||
gl__error_callback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, char *message, void *userParam){
|
||||
#endif
|
||||
switch (id){
|
||||
case 131218:
|
||||
{
|
||||
// NOTE(allen): performance warning, do nothing.
|
||||
}break;
|
||||
|
||||
default:
|
||||
{
|
||||
InvalidPath;
|
||||
}break;
|
||||
switch (id){
|
||||
case 131218:
|
||||
{
|
||||
// NOTE(allen): performance warning, do nothing.
|
||||
}break;
|
||||
|
||||
default:
|
||||
{
|
||||
InvalidPath;
|
||||
}break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
char *gl__header = R"foo(#version 150
|
||||
)foo";
|
||||
|
||||
char *gl__vertex = R"foo(
|
||||
uniform vec2 view_t;
|
||||
uniform mat2x2 view_m;
|
||||
in vec2 vertex_p;
|
||||
in vec3 vertex_t;
|
||||
in uint vertex_c;
|
||||
in float vertex_ht;
|
||||
smooth out vec4 fragment_color;
|
||||
smooth out vec3 uvw;
|
||||
smooth out vec2 xy;
|
||||
smooth out vec2 adjusted_half_dim;
|
||||
smooth out float half_thickness;
|
||||
void main(void)
|
||||
{
|
||||
gl_Position = vec4(view_m*(vertex_p - view_t), 0.0, 1.0);
|
||||
fragment_color.b = (float((vertex_c )&0xFFu))/255.0;
|
||||
fragment_color.g = (float((vertex_c>> 8u)&0xFFu))/255.0;
|
||||
fragment_color.r = (float((vertex_c>>16u)&0xFFu))/255.0;
|
||||
fragment_color.a = (float((vertex_c>>24u)&0xFFu))/255.0;
|
||||
uvw = vertex_t;
|
||||
vec2 center = vertex_t.xy;
|
||||
vec2 half_dim = abs(vertex_p - center);
|
||||
adjusted_half_dim = half_dim - vertex_t.zz + vec2(0.5, 0.5);
|
||||
half_thickness = vertex_ht;
|
||||
xy = vertex_p;
|
||||
}
|
||||
)foo";
|
||||
|
||||
char *gl__fragment = R"foo(
|
||||
smooth in vec4 fragment_color;
|
||||
smooth in vec3 uvw;
|
||||
smooth in vec2 xy;
|
||||
smooth in vec2 adjusted_half_dim;
|
||||
smooth in float half_thickness;
|
||||
uniform sampler2DArray sampler;
|
||||
out vec4 out_color;
|
||||
|
||||
float rectangle_sd(vec2 p, vec2 b){
|
||||
vec2 d = abs(p) - b;
|
||||
return(length(max(d, vec2(0.0, 0.0))) + min(max(d.x, d.y), 0.0));
|
||||
}
|
||||
|
||||
void main(void)
|
||||
{
|
||||
float has_thickness = (step(0.49, half_thickness));
|
||||
float does_not_have_thickness = 1.0 - has_thickness;
|
||||
|
||||
float sample_value = texture(sampler, uvw).r;
|
||||
sample_value *= does_not_have_thickness;
|
||||
|
||||
vec2 center = uvw.xy;
|
||||
float roundness = uvw.z;
|
||||
float sd = rectangle_sd(xy - center, adjusted_half_dim);
|
||||
sd = sd - roundness;
|
||||
sd = abs(sd + half_thickness) - half_thickness;
|
||||
float shape_value = 1.0 - smoothstep(-1.0, 0.0, sd);
|
||||
shape_value *= has_thickness;
|
||||
|
||||
out_color = vec4(fragment_color.xyz, fragment_color.a*(sample_value + shape_value));
|
||||
}
|
||||
)foo";
|
||||
|
||||
|
||||
char *gl__header = R"foo(#version 130
|
||||
)foo";
|
||||
|
||||
char *gl__vertex = R"foo(
|
||||
uniform vec2 view_t;
|
||||
uniform mat2x2 view_m;
|
||||
in vec2 vertex_p;
|
||||
in vec3 vertex_t;
|
||||
in uint vertex_c;
|
||||
in float vertex_ht;
|
||||
smooth out vec4 fragment_color;
|
||||
smooth out vec3 uvw;
|
||||
smooth out vec2 xy;
|
||||
smooth out vec2 adjusted_half_dim;
|
||||
smooth out float half_thickness;
|
||||
void main(void)
|
||||
{
|
||||
gl_Position = vec4(view_m*(vertex_p - view_t), 0.0, 1.0);
|
||||
fragment_color.b = (float((vertex_c )&0xFFu))/255.0;
|
||||
fragment_color.g = (float((vertex_c>> 8u)&0xFFu))/255.0;
|
||||
fragment_color.r = (float((vertex_c>>16u)&0xFFu))/255.0;
|
||||
fragment_color.a = (float((vertex_c>>24u)&0xFFu))/255.0;
|
||||
uvw = vertex_t;
|
||||
vec2 center = vertex_t.xy;
|
||||
vec2 half_dim = abs(vertex_p - center);
|
||||
adjusted_half_dim = half_dim - vertex_t.zz + vec2(0.5, 0.5);
|
||||
half_thickness = vertex_ht;
|
||||
xy = vertex_p;
|
||||
}
|
||||
)foo";
|
||||
|
||||
char *gl__fragment = R"foo(
|
||||
smooth in vec4 fragment_color;
|
||||
smooth in vec3 uvw;
|
||||
smooth in vec2 xy;
|
||||
smooth in vec2 adjusted_half_dim;
|
||||
smooth in float half_thickness;
|
||||
uniform sampler2DArray sampler;
|
||||
out vec4 out_color;
|
||||
|
||||
float rectangle_sd(vec2 p, vec2 b){
|
||||
vec2 d = abs(p) - b;
|
||||
return(length(max(d, vec2(0.0, 0.0))) + min(max(d.x, d.y), 0.0));
|
||||
}
|
||||
|
||||
void main(void)
|
||||
{
|
||||
float has_thickness = (step(0.49, half_thickness));
|
||||
float does_not_have_thickness = 1.0 - has_thickness;
|
||||
|
||||
float sample_value = texture(sampler, uvw).r;
|
||||
sample_value *= does_not_have_thickness;
|
||||
|
||||
vec2 center = uvw.xy;
|
||||
float roundness = uvw.z;
|
||||
float sd = rectangle_sd(xy - center, adjusted_half_dim);
|
||||
sd = sd - roundness;
|
||||
sd = abs(sd + half_thickness) - half_thickness;
|
||||
float shape_value = 1.0 - smoothstep(-1.0, 0.0, sd);
|
||||
shape_value *= has_thickness;
|
||||
|
||||
out_color = vec4(fragment_color.xyz, fragment_color.a*(sample_value + shape_value));
|
||||
}
|
||||
)foo";
|
||||
|
||||
#define AttributeList(X) \
|
||||
X(vertex_p) \
|
||||
X(vertex_t) \
|
||||
X(vertex_c) \
|
||||
X(vertex_ht)
|
||||
|
||||
X(vertex_p) \
|
||||
X(vertex_t) \
|
||||
X(vertex_c) \
|
||||
X(vertex_ht)
|
||||
|
||||
#define UniformList(X) \
|
||||
X(view_t) \
|
||||
X(view_m) \
|
||||
X(sampler)
|
||||
|
||||
struct GL_Program{
|
||||
u32 program;
|
||||
X(view_t) \
|
||||
X(view_m) \
|
||||
X(sampler)
|
||||
|
||||
struct GL_Program{
|
||||
u32 program;
|
||||
#define GetAttributeLocation(N) i32 N;
|
||||
AttributeList(GetAttributeLocation)
|
||||
AttributeList(GetAttributeLocation)
|
||||
#undef GetAttributeLocation
|
||||
#define GetUniformLocation(N) i32 N;
|
||||
UniformList(GetUniformLocation)
|
||||
#undef GetUniformLocation
|
||||
};
|
||||
|
||||
internal GL_Program
|
||||
gl__make_program(char *header, char *vertex, char *fragment){
|
||||
if (header == 0){
|
||||
header = "";
|
||||
}
|
||||
};
|
||||
|
||||
GLuint vertex_shader = glCreateShader(GL_VERTEX_SHADER);
|
||||
GLchar *vertex_source_array[] = { header, vertex };
|
||||
glShaderSource(vertex_shader, ArrayCount(vertex_source_array), vertex_source_array, 0);
|
||||
glCompileShader(vertex_shader);
|
||||
|
||||
GLuint fragment_shader = glCreateShader(GL_FRAGMENT_SHADER);
|
||||
GLchar *fragment_source_array[] = { header, fragment };
|
||||
glShaderSource(fragment_shader, ArrayCount(fragment_source_array), fragment_source_array, 0);
|
||||
glCompileShader(fragment_shader);
|
||||
|
||||
GLuint program = glCreateProgram();
|
||||
glAttachShader(program, vertex_shader);
|
||||
glAttachShader(program, fragment_shader);
|
||||
glLinkProgram(program);
|
||||
glValidateProgram(program);
|
||||
|
||||
GLint success = false;
|
||||
glGetProgramiv(program, GL_LINK_STATUS, &success);
|
||||
if (!success){
|
||||
GLsizei ignore = 0;
|
||||
char vertex_errors[KB(4)];
|
||||
char fragment_errors[KB(4)];
|
||||
char program_errors[KB(4)];
|
||||
glGetShaderInfoLog(vertex_shader, sizeof(vertex_errors), &ignore, vertex_errors);
|
||||
glGetShaderInfoLog(fragment_shader, sizeof(fragment_errors), &ignore, fragment_errors);
|
||||
glGetProgramInfoLog(program, sizeof(program_errors), &ignore, program_errors);
|
||||
internal GL_Program
|
||||
gl__make_program(char *header, char *vertex, char *fragment){
|
||||
if (header == 0){
|
||||
header = "";
|
||||
}
|
||||
|
||||
GLuint vertex_shader = glCreateShader(GL_VERTEX_SHADER);
|
||||
GLchar *vertex_source_array[] = { header, vertex };
|
||||
glShaderSource(vertex_shader, ArrayCount(vertex_source_array), vertex_source_array, 0);
|
||||
glCompileShader(vertex_shader);
|
||||
|
||||
GLuint fragment_shader = glCreateShader(GL_FRAGMENT_SHADER);
|
||||
GLchar *fragment_source_array[] = { header, fragment };
|
||||
glShaderSource(fragment_shader, ArrayCount(fragment_source_array), fragment_source_array, 0);
|
||||
glCompileShader(fragment_shader);
|
||||
|
||||
GLuint program = glCreateProgram();
|
||||
glAttachShader(program, vertex_shader);
|
||||
glAttachShader(program, fragment_shader);
|
||||
glLinkProgram(program);
|
||||
glValidateProgram(program);
|
||||
|
||||
GLint success = false;
|
||||
glGetProgramiv(program, GL_LINK_STATUS, &success);
|
||||
if (!success){
|
||||
GLsizei ignore = 0;
|
||||
char vertex_errors[KB(4)];
|
||||
char fragment_errors[KB(4)];
|
||||
char program_errors[KB(4)];
|
||||
glGetShaderInfoLog(vertex_shader, sizeof(vertex_errors), &ignore, vertex_errors);
|
||||
glGetShaderInfoLog(fragment_shader, sizeof(fragment_errors), &ignore, fragment_errors);
|
||||
glGetProgramInfoLog(program, sizeof(program_errors), &ignore, program_errors);
|
||||
#if SHIP_MODE
|
||||
os_popup_error("Error", "Shader compilation failed.");
|
||||
os_popup_error("Error", "Shader compilation failed.");
|
||||
#endif
|
||||
InvalidPath;
|
||||
}
|
||||
|
||||
glDeleteShader(vertex_shader);
|
||||
glDeleteShader(fragment_shader);
|
||||
|
||||
GL_Program result = {};
|
||||
result.program = program;
|
||||
InvalidPath;
|
||||
}
|
||||
|
||||
glDeleteShader(vertex_shader);
|
||||
glDeleteShader(fragment_shader);
|
||||
|
||||
GL_Program result = {};
|
||||
result.program = program;
|
||||
#define GetAttributeLocation(N) result.N = glGetAttribLocation(program, #N);
|
||||
AttributeList(GetAttributeLocation)
|
||||
AttributeList(GetAttributeLocation)
|
||||
#undef GetAttributeLocation
|
||||
#define GetUniformLocation(N) result.N = glGetUniformLocation(program, #N);
|
||||
UniformList(GetUniformLocation)
|
||||
#undef GetUniformLocation
|
||||
return(result);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#define GLOffsetStruct(p,m) ((void*)(OffsetOfMemberStruct(p,m)))
|
||||
#define GLOffset(S,m) ((void*)(OffsetOfMember(S,m)))
|
||||
|
||||
internal void
|
||||
gl_render(Render_Target *t){
|
||||
Font_Set *font_set = (Font_Set*)t->font_set;
|
||||
|
||||
local_persist b32 first_opengl_call = true;
|
||||
local_persist u32 attribute_buffer = 0;
|
||||
local_persist GL_Program gpu_program = {};
|
||||
|
||||
if (first_opengl_call){
|
||||
first_opengl_call = false;
|
||||
internal void
|
||||
gl_render(Render_Target *t){
|
||||
Font_Set *font_set = (Font_Set*)t->font_set;
|
||||
|
||||
local_persist b32 first_opengl_call = true;
|
||||
local_persist u32 attribute_buffer = 0;
|
||||
local_persist GL_Program gpu_program = {};
|
||||
|
||||
if (first_opengl_call){
|
||||
first_opengl_call = false;
|
||||
|
||||
#if !SHIP_MODE
|
||||
glEnable(GL_DEBUG_OUTPUT);
|
||||
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
|
||||
if (glDebugMessageControl){
|
||||
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_NOTIFICATION, 0, 0, false);
|
||||
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_LOW, 0, 0, false);
|
||||
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_MEDIUM, 0, 0, true);
|
||||
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_HIGH, 0, 0, true);
|
||||
}
|
||||
|
||||
if (glDebugMessageCallback){
|
||||
glDebugMessageCallback(gl__error_callback, 0);
|
||||
}
|
||||
glEnable(GL_DEBUG_OUTPUT);
|
||||
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
|
||||
if (glDebugMessageControl){
|
||||
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_NOTIFICATION, 0, 0, false);
|
||||
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_LOW, 0, 0, false);
|
||||
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_MEDIUM, 0, 0, true);
|
||||
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_HIGH, 0, 0, true);
|
||||
}
|
||||
|
||||
if (glDebugMessageCallback){
|
||||
glDebugMessageCallback(gl__error_callback, 0);
|
||||
}
|
||||
#endif
|
||||
|
||||
////////////////////////////////
|
||||
|
||||
GLuint dummy_vao = 0;
|
||||
glGenVertexArrays(1, &dummy_vao);
|
||||
glBindVertexArray(dummy_vao);
|
||||
|
||||
////////////////////////////////
|
||||
|
||||
glGenBuffers(1, &attribute_buffer);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, attribute_buffer);
|
||||
|
||||
////////////////////////////////
|
||||
|
||||
glEnable(GL_SCISSOR_TEST);
|
||||
glEnable(GL_BLEND);
|
||||
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
||||
|
||||
////////////////////////////////
|
||||
|
||||
gpu_program = gl__make_program(gl__header, gl__vertex, gl__fragment);
|
||||
glUseProgram(gpu_program.program);
|
||||
|
||||
////////////////////////////////
|
||||
|
||||
{
|
||||
t->fallback_texture_id = gl__get_texture(V3i32(2, 2, 1), TextureKind_Mono);
|
||||
u8 white_block[] = { 0xFF, 0xFF, 0xFF, 0xFF, };
|
||||
gl__fill_texture(TextureKind_Mono, 0, V3i32(0, 0, 0), V3i32(2, 2, 1), white_block);
|
||||
|
||||
////////////////////////////////
|
||||
|
||||
GLuint dummy_vao = 0;
|
||||
glGenVertexArrays(1, &dummy_vao);
|
||||
glBindVertexArray(dummy_vao);
|
||||
|
||||
////////////////////////////////
|
||||
|
||||
glGenBuffers(1, &attribute_buffer);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, attribute_buffer);
|
||||
|
||||
////////////////////////////////
|
||||
|
||||
glEnable(GL_SCISSOR_TEST);
|
||||
glEnable(GL_BLEND);
|
||||
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
||||
|
||||
////////////////////////////////
|
||||
|
||||
gpu_program = gl__make_program(gl__header, gl__vertex, gl__fragment);
|
||||
glUseProgram(gpu_program.program);
|
||||
|
||||
////////////////////////////////
|
||||
|
||||
{
|
||||
t->fallback_texture_id = gl__get_texture(V3i32(2, 2, 1), TextureKind_Mono);
|
||||
u8 white_block[] = { 0xFF, 0xFF, 0xFF, 0xFF, };
|
||||
gl__fill_texture(TextureKind_Mono, 0, V3i32(0, 0, 0), V3i32(2, 2, 1), white_block);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
i32 width = t->width;
|
||||
i32 height = t->height;
|
||||
|
||||
glViewport(0, 0, width, height);
|
||||
glScissor(0, 0, width, height);
|
||||
glClearColor(1.f, 0.f, 1.f, 1.f);
|
||||
glClear(GL_COLOR_BUFFER_BIT);
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, 0);
|
||||
t->bound_texture = 0;
|
||||
|
||||
for (Render_Free_Texture *free_texture = t->free_texture_first;
|
||||
free_texture != 0;
|
||||
free_texture = free_texture->next){
|
||||
glDeleteTextures(1, &free_texture->tex_id);
|
||||
}
|
||||
t->free_texture_first = 0;
|
||||
t->free_texture_last = 0;
|
||||
|
||||
for (Render_Group *group = t->group_first;
|
||||
group != 0;
|
||||
group = group->next){
|
||||
Rect_i32 box = Ri32(group->clip_box);
|
||||
|
||||
Rect_i32 scissor_box = {
|
||||
box.x0, height - box.y1, box.x1 - box.x0, box.y1 - box.y0,
|
||||
};
|
||||
scissor_box.x0 = clamp_bot(0, scissor_box.x0);
|
||||
scissor_box.y0 = clamp_bot(0, scissor_box.y0);
|
||||
scissor_box.x1 = clamp_bot(0, scissor_box.x1);
|
||||
scissor_box.y1 = clamp_bot(0, scissor_box.y1);
|
||||
glScissor(scissor_box.x0, scissor_box.y0, scissor_box.x1, scissor_box.y1);
|
||||
i32 width = t->width;
|
||||
i32 height = t->height;
|
||||
|
||||
i32 vertex_count = group->vertex_list.vertex_count;
|
||||
if (vertex_count > 0){
|
||||
Face *face = font_set_face_from_id(font_set, group->face_id);
|
||||
if (face != 0){
|
||||
gl__bind_texture(t, face->texture);
|
||||
}
|
||||
else{
|
||||
gl__bind_any_texture(t);
|
||||
}
|
||||
glViewport(0, 0, width, height);
|
||||
glScissor(0, 0, width, height);
|
||||
glClearColor(1.f, 0.f, 1.f, 1.f);
|
||||
glClear(GL_COLOR_BUFFER_BIT);
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, 0);
|
||||
t->bound_texture = 0;
|
||||
|
||||
for (Render_Free_Texture *free_texture = t->free_texture_first;
|
||||
free_texture != 0;
|
||||
free_texture = free_texture->next){
|
||||
glDeleteTextures(1, &free_texture->tex_id);
|
||||
}
|
||||
t->free_texture_first = 0;
|
||||
t->free_texture_last = 0;
|
||||
|
||||
for (Render_Group *group = t->group_first;
|
||||
group != 0;
|
||||
group = group->next){
|
||||
Rect_i32 box = Ri32(group->clip_box);
|
||||
|
||||
glBufferData(GL_ARRAY_BUFFER, vertex_count*sizeof(Render_Vertex), 0, GL_STREAM_DRAW);
|
||||
i32 cursor = 0;
|
||||
for (Render_Vertex_Array_Node *node = group->vertex_list.first;
|
||||
node != 0;
|
||||
node = node->next){
|
||||
i32 size = node->vertex_count*sizeof(*node->vertices);
|
||||
glBufferSubData(GL_ARRAY_BUFFER, cursor, size, node->vertices);
|
||||
cursor += size;
|
||||
}
|
||||
|
||||
glEnableVertexAttribArray(gpu_program.vertex_p);
|
||||
glEnableVertexAttribArray(gpu_program.vertex_t);
|
||||
glEnableVertexAttribArray(gpu_program.vertex_c);
|
||||
glEnableVertexAttribArray(gpu_program.vertex_ht);
|
||||
|
||||
glVertexAttribPointer(gpu_program.vertex_p, 2, GL_FLOAT, true, sizeof(Render_Vertex),
|
||||
GLOffset(Render_Vertex, xy));
|
||||
glVertexAttribPointer(gpu_program.vertex_t, 3, GL_FLOAT, true, sizeof(Render_Vertex),
|
||||
GLOffset(Render_Vertex, uvw));
|
||||
glVertexAttribIPointer(gpu_program.vertex_c, 1, GL_UNSIGNED_INT, sizeof(Render_Vertex),
|
||||
GLOffset(Render_Vertex, color));
|
||||
glVertexAttribPointer(gpu_program.vertex_ht, 1, GL_FLOAT, true, sizeof(Render_Vertex),
|
||||
GLOffset(Render_Vertex, half_thickness));
|
||||
|
||||
glUniform2f(gpu_program.view_t, width/2.f, height/2.f);
|
||||
f32 m[4] = {
|
||||
2.f/width, 0.f,
|
||||
0.f, -2.f/height,
|
||||
Rect_i32 scissor_box = {
|
||||
box.x0, height - box.y1, box.x1 - box.x0, box.y1 - box.y0,
|
||||
};
|
||||
glUniformMatrix2fv(gpu_program.view_m, 1, GL_FALSE, m);
|
||||
glUniform1i(gpu_program.sampler, 0);
|
||||
scissor_box.x0 = clamp_bot(0, scissor_box.x0);
|
||||
scissor_box.y0 = clamp_bot(0, scissor_box.y0);
|
||||
scissor_box.x1 = clamp_bot(0, scissor_box.x1);
|
||||
scissor_box.y1 = clamp_bot(0, scissor_box.y1);
|
||||
glScissor(scissor_box.x0, scissor_box.y0, scissor_box.x1, scissor_box.y1);
|
||||
|
||||
glDrawArrays(GL_TRIANGLES, 0, vertex_count);
|
||||
glDisableVertexAttribArray(gpu_program.vertex_p);
|
||||
glDisableVertexAttribArray(gpu_program.vertex_t);
|
||||
glDisableVertexAttribArray(gpu_program.vertex_c);
|
||||
glDisableVertexAttribArray(gpu_program.vertex_ht);
|
||||
i32 vertex_count = group->vertex_list.vertex_count;
|
||||
if (vertex_count > 0){
|
||||
Face *face = font_set_face_from_id(font_set, group->face_id);
|
||||
if (face != 0){
|
||||
gl__bind_texture(t, face->texture);
|
||||
}
|
||||
else{
|
||||
gl__bind_any_texture(t);
|
||||
}
|
||||
|
||||
glBufferData(GL_ARRAY_BUFFER, vertex_count*sizeof(Render_Vertex), 0, GL_STREAM_DRAW);
|
||||
i32 cursor = 0;
|
||||
for (Render_Vertex_Array_Node *node = group->vertex_list.first;
|
||||
node != 0;
|
||||
node = node->next){
|
||||
i32 size = node->vertex_count*sizeof(*node->vertices);
|
||||
glBufferSubData(GL_ARRAY_BUFFER, cursor, size, node->vertices);
|
||||
cursor += size;
|
||||
}
|
||||
|
||||
glEnableVertexAttribArray(gpu_program.vertex_p);
|
||||
glEnableVertexAttribArray(gpu_program.vertex_t);
|
||||
glEnableVertexAttribArray(gpu_program.vertex_c);
|
||||
glEnableVertexAttribArray(gpu_program.vertex_ht);
|
||||
|
||||
glVertexAttribPointer(gpu_program.vertex_p, 2, GL_FLOAT, true, sizeof(Render_Vertex),
|
||||
GLOffset(Render_Vertex, xy));
|
||||
glVertexAttribPointer(gpu_program.vertex_t, 3, GL_FLOAT, true, sizeof(Render_Vertex),
|
||||
GLOffset(Render_Vertex, uvw));
|
||||
glVertexAttribIPointer(gpu_program.vertex_c, 1, GL_UNSIGNED_INT, sizeof(Render_Vertex),
|
||||
GLOffset(Render_Vertex, color));
|
||||
glVertexAttribPointer(gpu_program.vertex_ht, 1, GL_FLOAT, true, sizeof(Render_Vertex),
|
||||
GLOffset(Render_Vertex, half_thickness));
|
||||
|
||||
glUniform2f(gpu_program.view_t, width/2.f, height/2.f);
|
||||
f32 m[4] = {
|
||||
2.f/width, 0.f,
|
||||
0.f, -2.f/height,
|
||||
};
|
||||
glUniformMatrix2fv(gpu_program.view_m, 1, GL_FALSE, m);
|
||||
glUniform1i(gpu_program.sampler, 0);
|
||||
|
||||
glDrawArrays(GL_TRIANGLES, 0, vertex_count);
|
||||
glDisableVertexAttribArray(gpu_program.vertex_p);
|
||||
glDisableVertexAttribArray(gpu_program.vertex_t);
|
||||
glDisableVertexAttribArray(gpu_program.vertex_c);
|
||||
glDisableVertexAttribArray(gpu_program.vertex_ht);
|
||||
}
|
||||
}
|
||||
|
||||
glFlush();
|
||||
}
|
||||
|
||||
glFlush();
|
||||
}
|
||||
|
||||
// BOTTOM
|
||||
|
||||
// BOTTOM
|
||||
|
||||
|
||||
Loading…
Reference in New Issue