Commit 8dd274b26e9f492a36102fcd2993db4d97050863
2024-01-16T22:51:03
wip textures
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diff --git a/libc3/window/sdl2/demo/earth.c b/libc3/window/sdl2/demo/earth.c
index 6c93c53..e078cae 100644
--- a/libc3/window/sdl2/demo/earth.c
+++ b/libc3/window/sdl2/demo/earth.c
@@ -117,10 +117,10 @@ bool earth_render (s_sequence *seq)
assert(glGetError() == GL_NO_ERROR);
//glEnable(GL_TEXTURE_2D);
assert(glGetError() == GL_NO_ERROR);
- gl_camera_bind_texture(camera,
- gl_sprite_texture(&g_sprite_earth, 0));
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
- GL_LINEAR_MIPMAP_LINEAR);
+ //gl_camera_bind_texture(camera,
+ // gl_sprite_texture(&g_sprite_earth, 0));
+ //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
+ // GL_LINEAR_MIPMAP_LINEAR);
assert(glGetError() == GL_NO_ERROR);
glBlendColor(1.0f, 1.0f, 1.0f, 1.0f);
gl_sphere_render(sphere);
diff --git a/libc3/window/sdl2/demo/flies.c b/libc3/window/sdl2/demo/flies.c
index 99ae8d5..866ebd0 100644
--- a/libc3/window/sdl2/demo/flies.c
+++ b/libc3/window/sdl2/demo/flies.c
@@ -201,7 +201,7 @@ bool flies_render (s_sequence *seq)
gl_matrix_4f_init_identity(&g_ortho.model_matrix);
gl_matrix_4f_translate(&g_ortho.model_matrix, board_x, 60.0, 0.0);
gl_ortho_update_model_matrix(&g_ortho);
- glBlendColor(1.0f, 1.0f, 1.0f, 1.0f);
+ gl_ortho_color(&g_ortho, 1.0f, 1.0f, 1.0f, 1.0f);
buf_init(&buf, false, sizeof(a), a);
buf_write_1(&buf, "In ");
buf_inspect_uw(&buf, fly_in);
@@ -213,15 +213,15 @@ bool flies_render (s_sequence *seq)
buf_write_1(&buf, "Out ");
buf_inspect_uw(&buf, fly_out);
buf_write_u8(&buf, 0);
+ gl_text_update_1(&g_text_flies_out, a);
matrix = g_ortho.model_matrix; {
x = board_item_w * (BOARD_SIZE / 2 + 1);
gl_matrix_4f_translate(&g_ortho.model_matrix, x, 0.0, 0.0);
gl_ortho_update_model_matrix(&g_ortho);
- gl_text_update_1(&g_text_flies_out, a);
gl_ortho_text_render(&g_ortho, &g_text_flies_out);
g_ortho.model_matrix = matrix;
gl_matrix_4f_translate(&g_ortho.model_matrix, 0.0, board_item_h, 0.0);
- glBlendColor(0.6f, 0.7f, 0.9f, 1.0f);
+ gl_ortho_color(&g_ortho, 0.6f, 0.7f, 0.9f, 1.0f);
gl_ortho_rect(&g_ortho, 0, 0, board_w, board_h);
address[1] = 0;
while (address[1] < BOARD_SIZE) {
@@ -239,7 +239,7 @@ bool flies_render (s_sequence *seq)
break;
case BOARD_ITEM_BLOCK:
gl_ortho_bind_texture(&g_ortho, 0);
- glBlendColor(0.0f, 0.0f, 1.0f, 1.0f);
+ gl_ortho_color(&g_ortho, 0.0f, 0.0f, 1.0f, 1.0f);
gl_ortho_rect(&g_ortho, 0, 0, board_item_w + 1.0, board_item_h + 1.0);
break;
case BOARD_ITEM_FLY:
@@ -252,6 +252,7 @@ bool flies_render (s_sequence *seq)
gl_ortho_update_model_matrix(&g_ortho);
gl_ortho_bind_texture(&g_ortho,
gl_sprite_texture(&g_sprite_fly, 0));
+ gl_ortho_color(&g_ortho, 1.0f, 1.0f, 1.0f, 1.0f);
gl_ortho_rect(&g_ortho, 0, 0, g_sprite_fly.pt_w,
g_sprite_fly.pt_h);
gl_ortho_bind_texture(&g_ortho, 0);
@@ -332,6 +333,7 @@ bool flies_render (s_sequence *seq)
gl_ortho_update_model_matrix(&g_ortho);
gl_ortho_bind_texture(&g_ortho,
gl_sprite_texture(&g_sprite_dead_fly, 0));
+ gl_ortho_color(&g_ortho, 1.0f, 1.0f, 1.0f, 1.0f);
gl_ortho_rect(&g_ortho, 0, 0, g_sprite_dead_fly.pt_w,
g_sprite_dead_fly.pt_h);
gl_ortho_bind_texture(&g_ortho, 0);
diff --git a/libc3/window/sdl2/demo/window_sdl2_demo.c b/libc3/window/sdl2/demo/window_sdl2_demo.c
index 84107f7..d149790 100644
--- a/libc3/window/sdl2/demo/window_sdl2_demo.c
+++ b/libc3/window/sdl2/demo/window_sdl2_demo.c
@@ -219,7 +219,7 @@ static void render_text (s_gl_text *text, f64 x, f64 y)
matrix = g_ortho.model_matrix;
gl_matrix_4f_translate(&g_ortho.model_matrix, x - 1.0, y - 1.0, 0.0);
gl_ortho_update_model_matrix(&g_ortho);
- glBlendColor(1.0f, 1.0f, 1.0f, 1.0f);
+ gl_ortho_color(&g_ortho, 1.0f, 1.0f, 1.0f, 1.0f);
assert(glGetError() == GL_NO_ERROR);
gl_ortho_text_render(&g_ortho, text);
assert(glGetError() == GL_NO_ERROR);
@@ -249,7 +249,7 @@ static void render_text (s_gl_text *text, f64 x, f64 y)
gl_ortho_update_model_matrix(&g_ortho);
gl_ortho_text_render(&g_ortho, text);
assert(glGetError() == GL_NO_ERROR);
- glBlendColor(0.0f, 0.0f, 0.0f, 1.0f);
+ gl_ortho_color(&g_ortho, 0.0f, 0.0f, 0.0f, 1.0f);
assert(glGetError() == GL_NO_ERROR);
gl_matrix_4f_translate(&g_ortho.model_matrix, -1.0, -1.0, 0.0);
gl_ortho_update_model_matrix(&g_ortho);
@@ -293,11 +293,11 @@ bool window_sdl2_demo_render (s_window_sdl2 *window)
assert(glGetError() == GL_NO_ERROR);
gl_ortho_bind_texture(&g_ortho, 0);
assert(glGetError() == GL_NO_ERROR);
- glBlendColor(1.0f, 1.0f, 1.0f, 1.0f);
+ gl_ortho_color(&g_ortho, 1.0f, 1.0f, 1.0f, 1.0f);
gl_ortho_rect(&g_ortho, 19, 11,
(window->w - 40.0) * seq->t / seq->duration + 2,
4);
- glBlendColor(0.0f, 0.0f, 0.0f, 1.0f);
+ gl_ortho_color(&g_ortho, 0.0f, 0.0f, 0.0f, 1.0f);
gl_ortho_rect(&g_ortho, 20, 12,
(window->w - 40.0) * seq->t / seq->duration,
2);
diff --git a/libc3/window/sdl2/gl_camera.c b/libc3/window/sdl2/gl_camera.c
index 5bb5e71..6189528 100644
--- a/libc3/window/sdl2/gl_camera.c
+++ b/libc3/window/sdl2/gl_camera.c
@@ -40,13 +40,14 @@ static const char * g_gl_camera_fragment_shader_src =
"out vec4 oFragColor;\n"
"uniform bool uEnableTex2D;\n"
"uniform sampler2D uTex2D;\n"
+ "uniform vec4 uColor;\n"
"void main() {\n"
+ " vec4 texColor = texture(uTex2D, iTexCoord);\n"
" if (uEnableTex2D) {\n"
- " vec4 texColor = texture(uTex2D, iTexCoord);\n"
- " oFragColor = texColor;\n"
+ " oFragColor = texColor * uColor;\n"
" }\n"
" else\n"
- " oFragColor = vec4(1, 1, 1, 1);\n"
+ " oFragColor = uColor;\n"
"}\n";
void gl_camera_bind_texture (s_gl_camera *camera, GLuint texture)
@@ -129,6 +130,15 @@ s_gl_camera * gl_camera_init (s_gl_camera *camera, uw w, uw h)
camera->gl_model_matrix_loc =
glGetUniformLocation(camera->gl_shader_program,
"uModelMatrix");
+ camera->gl_enable_tex2d_loc =
+ glGetUniformLocation(camera->gl_shader_program,
+ "uEnableTex2D");
+ camera->gl_tex2d_loc =
+ glGetUniformLocation(camera->gl_shader_program,
+ "uTex2D");
+ camera->gl_color_loc =
+ glGetUniformLocation(camera->gl_shader_program,
+ "uColor");
return camera;
}
@@ -149,7 +159,9 @@ s_gl_camera * gl_camera_new (uw w, uw h)
void gl_camera_render (s_gl_camera *camera)
{
+ const s_rgba color = {1, 1, 1, 1};
assert(camera);
+ assert(glGetError() == GL_NO_ERROR);
gl_matrix_4f_init_identity(&camera->projection_matrix);
gl_matrix_4f_perspective(&camera->projection_matrix, camera->fov_y,
camera->aspect_ratio, camera->clip_z_near,
@@ -165,12 +177,22 @@ void gl_camera_render (s_gl_camera *camera)
&(s_gl_point_3f) { 0.0f, 0.0f, 1.0f });
gl_matrix_4f_init_identity(&camera->model_matrix);
glUseProgram(camera->gl_shader_program);
+ assert(glGetError() == GL_NO_ERROR);
glUniformMatrix4fv(camera->gl_projection_matrix_loc, 1, GL_FALSE,
&camera->projection_matrix.xx);
+ assert(glGetError() == GL_NO_ERROR);
glUniformMatrix4fv(camera->gl_view_matrix_loc, 1, GL_FALSE,
&camera->view_matrix.xx);
+ assert(glGetError() == GL_NO_ERROR);
glUniformMatrix4fv(camera->gl_model_matrix_loc, 1, GL_FALSE,
&camera->model_matrix.xx);
+ assert(glGetError() == GL_NO_ERROR);
+ glUniform1i(camera->gl_enable_tex2d_loc, 0);
+ assert(glGetError() == GL_NO_ERROR);
+ glUniform1i(camera->gl_tex2d_loc, 0);
+ assert(glGetError() == GL_NO_ERROR);
+ glUniform4fv(camera->gl_color_loc, 1, &color.r);
+ assert(glGetError() == GL_NO_ERROR);
}
void gl_camera_render_end (s_gl_camera *camera)
diff --git a/libc3/window/sdl2/gl_ortho.c b/libc3/window/sdl2/gl_ortho.c
index 7214c5e..623f30c 100644
--- a/libc3/window/sdl2/gl_ortho.c
+++ b/libc3/window/sdl2/gl_ortho.c
@@ -42,13 +42,14 @@ static const char * g_gl_ortho_fragment_shader_src =
"out vec4 oFragColor;\n"
"uniform bool uEnableTex2D;\n"
"uniform sampler2D uTex2D;\n"
+ "uniform vec4 uColor;\n"
"void main() {\n"
+ " vec4 texColor = texture(uTex2D, iTexCoord);\n"
" if (uEnableTex2D) {\n"
- " vec4 texColor = texture(uTex2D, iTexCoord);\n"
" oFragColor = texColor;\n"
" }\n"
" else\n"
- " oFragColor = vec4(1, 1, 1, 1);\n"
+ " oFragColor = uColor;\n"
"}\n";
void gl_ortho_bind_texture (s_gl_ortho *ortho, GLuint texture)
@@ -56,21 +57,43 @@ void gl_ortho_bind_texture (s_gl_ortho *ortho, GLuint texture)
assert(ortho);
assert(glGetError() == GL_NO_ERROR);
if (! texture) {
+ glActiveTexture(GL_TEXTURE0);
+ assert(glGetError() == GL_NO_ERROR);
+ glBindTexture(GL_TEXTURE_2D, 0);
+ assert(glGetError() == GL_NO_ERROR);
glUniform1i(ortho->gl_enable_tex2d_loc, 0);
assert(glGetError() == GL_NO_ERROR);
+ glUniform1i(ortho->gl_tex2d_loc, 0);
+ assert(glGetError() == GL_NO_ERROR);
return;
}
+ glActiveTexture(GL_TEXTURE0);
+ assert(glGetError() == GL_NO_ERROR);
+ glBindTexture(GL_TEXTURE_2D, texture);
+ assert(glGetError() == GL_NO_ERROR);
glUniform1i(ortho->gl_enable_tex2d_loc, 1);
assert(glGetError() == GL_NO_ERROR);
- glUniform1i(ortho->gl_tex2d_loc, texture);
+ glUniform1i(ortho->gl_tex2d_loc, 0);
assert(glGetError() == GL_NO_ERROR);
}
void gl_ortho_clean (s_gl_ortho *ortho)
{
assert(ortho);
+ assert(glGetError() == GL_NO_ERROR);
glDeleteProgram(ortho->gl_shader_program);
+ assert(glGetError() == GL_NO_ERROR);
gl_square_clean(&ortho->square);
+ assert(glGetError() == GL_NO_ERROR);
+}
+
+void gl_ortho_color (s_gl_ortho *ortho, f32 r, f32 g, f32 b, f32 a)
+{
+ s_rgba color = {r, g, b, a};
+ assert(ortho);
+ assert(glGetError() == GL_NO_ERROR);
+ glUniform4fv(ortho->gl_color_loc, 1, &color.r);
+ assert(glGetError() == GL_NO_ERROR);
}
void gl_ortho_delete (s_gl_ortho *ortho)
@@ -149,6 +172,9 @@ s_gl_ortho * gl_ortho_init (s_gl_ortho *ortho)
ortho->gl_tex2d_loc =
glGetUniformLocation(ortho->gl_shader_program, "uTex2D");
assert(glGetError() == GL_NO_ERROR);
+ ortho->gl_color_loc =
+ glGetUniformLocation(ortho->gl_shader_program, "uColor");
+ assert(glGetError() == GL_NO_ERROR);
return ortho;
}
@@ -173,8 +199,8 @@ void gl_ortho_rect (s_gl_ortho *ortho, f32 x, f32 y, f32 w, f32 h)
assert(ortho);
assert(glGetError() == GL_NO_ERROR);
matrix = ortho->model_matrix;
- gl_matrix_4f_translate(&ortho->model_matrix, x - 0.5, y - 0.5, 0.0f);
- gl_matrix_4f_scale(&ortho->model_matrix, w + 1.0f, h + 1.0f, 1.0f);
+ gl_matrix_4f_translate(&ortho->model_matrix, x, y, 0.0f);
+ gl_matrix_4f_scale(&ortho->model_matrix, w, h, 1.0f);
gl_ortho_update_model_matrix(ortho);
assert(glGetError() == GL_NO_ERROR);
gl_square_render(&ortho->square);
@@ -184,6 +210,7 @@ void gl_ortho_rect (s_gl_ortho *ortho, f32 x, f32 y, f32 w, f32 h)
void gl_ortho_render (s_gl_ortho *ortho)
{
+ const s_rgba color = {1, 1, 1, 1};
GLenum error;
assert(ortho);
assert(glGetError() == GL_NO_ERROR);
@@ -207,6 +234,8 @@ void gl_ortho_render (s_gl_ortho *ortho)
assert(glGetError() == GL_NO_ERROR);
glUniform1i(ortho->gl_tex2d_loc, 0);
assert(glGetError() == GL_NO_ERROR);
+ glUniform4fv(ortho->gl_color_loc, 1, &color.r);
+ assert(glGetError() == GL_NO_ERROR);
glDepthRange(ortho->clip_z_near, ortho->clip_z_far);
assert(glGetError() == GL_NO_ERROR);
/*
diff --git a/libc3/window/sdl2/gl_ortho.h b/libc3/window/sdl2/gl_ortho.h
index 8e06d15..c31264a 100644
--- a/libc3/window/sdl2/gl_ortho.h
+++ b/libc3/window/sdl2/gl_ortho.h
@@ -26,6 +26,8 @@ s_gl_ortho * gl_ortho_new (void);
/* Operators. */
void gl_ortho_bind_texture (s_gl_ortho *ortho, GLuint texture);
+void gl_ortho_color (s_gl_ortho *ortho, f32 r, f32 g, f32 b,
+ f32 a);
void gl_ortho_rect (s_gl_ortho *ortho, f32 x1, f32 x2, f32 y1,
f32 y2);
void gl_ortho_render (s_gl_ortho *ortho);
diff --git a/libc3/window/sdl2/gl_text.c b/libc3/window/sdl2/gl_text.c
index a04617b..e42c7d1 100644
--- a/libc3/window/sdl2/gl_text.c
+++ b/libc3/window/sdl2/gl_text.c
@@ -118,7 +118,7 @@ bool gl_text_render_to_texture (s_gl_text *text)
FT_Vector delta;
FT_Get_Kerning(font->ft_face, prev_glyph_index, glyph_index,
FT_KERNING_DEFAULT, &delta);
- x += (f32) delta.x / (1 << 6);
+ x += delta.x >> 6;
}
if (FT_Load_Glyph(font->ft_face, glyph_index, FT_LOAD_RENDER)) {
continue;
@@ -128,13 +128,13 @@ bool gl_text_render_to_texture (s_gl_text *text)
while (i < glyph->bitmap.width) {
j = 0;
while (j < glyph->bitmap.rows) {
- data_x = round(x) + i;
+ data_x = x + i;
data_y = j + glyph->bitmap_top;
data_pixel = data + (data_y * data_w + data_x) * 4;
u8 value = glyph->bitmap.buffer[j * glyph->bitmap.width + i];
- data_pixel[0] = value;
- data_pixel[1] = value;
- data_pixel[2] = value;
+ data_pixel[0] = 255;
+ data_pixel[1] = 255;
+ data_pixel[2] = 255;
data_pixel[3] = value;
j++;
}
diff --git a/libc3/window/sdl2/types.h b/libc3/window/sdl2/types.h
index fef23ea..95bf885 100644
--- a/libc3/window/sdl2/types.h
+++ b/libc3/window/sdl2/types.h
@@ -274,14 +274,15 @@ struct gl_camera {
s_gl_point_3f rotation;
s_gl_point_3f scale;
s_gl_matrix_4f projection_matrix;
- u32 gl_projection_matrix_loc;
s_gl_matrix_4f view_matrix;
- u32 gl_view_matrix_loc;
s_gl_matrix_4f model_matrix;
- u32 gl_model_matrix_loc;
- u32 gl_enable_tex2d_loc;
- u32 gl_tex2d_loc;
- u32 gl_shader_program;
+ GLuint gl_projection_matrix_loc;
+ GLuint gl_view_matrix_loc;
+ GLuint gl_model_matrix_loc;
+ GLuint gl_enable_tex2d_loc;
+ GLuint gl_tex2d_loc;
+ GLuint gl_color_loc;
+ GLuint gl_shader_program;
};
struct gl_cylinder {
@@ -302,13 +303,11 @@ struct gl_square {
uw segments_v;
};
-#pragma pack(push, 1)
struct gl_vertex {
s_gl_point_3f position;
s_gl_point_3f normal;
s_gl_point_2f tex_coord;
};
-#pragma pack(pop)
struct sdl2_sprite {
s_gl_object object;
@@ -339,14 +338,15 @@ struct gl_ortho {
s_gl_point_3f rotation;
s_gl_point_3f scale;
s_gl_matrix_4f projection_matrix;
- u32 gl_projection_matrix_loc;
+ GLuint gl_projection_matrix_loc;
s_gl_matrix_4f view_matrix;
- u32 gl_view_matrix_loc;
+ GLuint gl_view_matrix_loc;
s_gl_matrix_4f model_matrix;
- u32 gl_model_matrix_loc;
- u32 gl_enable_tex2d_loc;
- u32 gl_tex2d_loc;
- u32 gl_shader_program;
+ GLuint gl_model_matrix_loc;
+ GLuint gl_enable_tex2d_loc;
+ GLuint gl_tex2d_loc;
+ GLuint gl_color_loc;
+ GLuint gl_shader_program;
s_gl_square square;
};