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text rendering woiks

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This commit is contained in:
John Alanbrook 2023-05-07 16:11:33 +00:00
parent 8552d6a1df
commit 7fc02062c0
3 changed files with 16 additions and 11 deletions
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18
source/engine/font.c
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@ -74,7 +74,7 @@ void font_init(struct shader *textshader) {
.fs.source = slurp_text("shaders/textfrag.glsl"),
.vs.uniform_blocks[0] = {
.size = sizeof(float)*16,
.layout = SG_UNIFORMLAYOUT_STD140,
// .layout = SG_UNIFORMLAYOUT_STD140,
.uniforms = {
[0] = { .name = "projection", .type = SG_UNIFORMTYPE_MAT4 }
}
@ -99,12 +99,12 @@ void font_init(struct shader *textshader) {
[2].buffer_index = 1},
.buffers[2].step_func = SG_VERTEXSTEP_PER_INSTANCE,
},
.primitive_type = SG_PRIMITIVETYPE_TRIANGLE_STRIP,
// .primitive_type = SG_PRIMITIVETYPE_TRIANGLE_STRIP,
.label = "text pipeline"
});
bind_text.vertex_buffers[0] = sg_make_buffer(&(sg_buffer_desc){
.size = sizeof(float)*16*40000,
.size = sizeof(float)*24*3*1024*1024,
.type = SG_BUFFERTYPE_VERTEXBUFFER,
.usage = SG_USAGE_STREAM,
.label = "text buffer"
@ -215,9 +215,7 @@ void text_flush()
sg_apply_bindings(&bind_text);
sg_apply_uniforms(SG_SHADERSTAGE_VS,0,SG_RANGE_REF(projection));
YughWarn("Chars: %d", curchar);
sg_draw(0,4*curchar,1);
sg_draw(0,6*curchar,1);
curchar = 0;
}
@ -229,14 +227,16 @@ void fill_charverts(float *verts, float cursor[2], float scale, struct Character
float xpos = cursor[0] + (c.Bearing[0]+offset[0]) * scale;
float ypos = cursor[1] - (c.Bearing[1]+offset[1]) * scale;
float v[16] = {
float v[24] = {
xpos, ypos, c.rect.s0, c.rect.t1,
xpos+w, ypos, c.rect.s1, c.rect.t1,
xpos, ypos + h, c.rect.s0, c.rect.t0,
xpos, ypos + h, c.rect.s0, c.rect.t0,
xpos+w, ypos, c.rect.s1, c.rect.t1,
xpos + w, ypos + h, c.rect.s1, c.rect.t0
};
memcpy(verts, v, sizeof(float)*16);
memcpy(verts, v, sizeof(float)*24);
}
static int drawcaret = 0;
@ -246,7 +246,7 @@ void sdrawCharacter(struct Character c, mfloat_t cursor[2], float scale, struct
float shadowcolor[3] = {0.f, 0.f, 0.f};
float shadowcursor[2];
float verts[16];
float verts[24];
float offset[2] = {-1, 1};
fill_charverts(verts, cursor, scale, c, offset);

8
source/engine/openglrender.c
View file

@ -54,6 +54,8 @@ char objectName[200] = { '\0' }; // object name buffer
struct sprite *tsprite = NULL;
const char *donquixote;
void debug_draw_phys(int draw) {
debugDrawPhysics = draw;
}
@ -73,6 +75,8 @@ void openglInit()
exit(1);
}
donquixote = slurp_text("quixote.txt");
////// MAKE SHADERS
spriteShader = MakeShader("spritevert.glsl", "spritefrag.glsl");
wireframeShader = MakeShader("spritevert.glsl", "spritewireframefrag.glsl");
@ -142,10 +146,10 @@ void openglRender(struct window *window)
// gui_draw_img("pill1.png", 200, 200);
float a[2] = {100,100};
float w[3] = {1.f,1.f,1.f};
renderText("TEST RENDER", a, 1.f, w, 0,-1);
// renderText("TEST RENDER", a, 1.f, w, 0,-1);
float b[2] = {50,50};
renderText("TEST 2 RENDER", b, 1.f, w, 0,-1);
// renderText(donquixote, b, 1.f, w, 0,-1);
/* UI Elements & Debug elements */
// glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);

1
source/shaders/textfrag.glsl
View file

@ -8,6 +8,7 @@ uniform sampler2D text;
void main()
{
// color = vec4(fColor.xyz, texture(text, TexCoords).r);
color = vec4(1.f,1.f,1.f, texture(text, TexCoords).r);
if (color.a <= 0.1f)