98 lines
2.6 KiB
C
98 lines
2.6 KiB
C
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#include "texture_quad.h"
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void
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texture_quad_draw
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(
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Texture* texture,
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Renderer* renderer,
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Shader* shader,
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vec2 uvMin,
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vec2 uvMax,
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mat4 model,
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mat4 view,
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mat4 projection,
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vec2 size,
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vec4 color,
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vec4 colorCover,
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Flip flip
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)
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{
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f32 vertices[4][5];
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u32 indices[2][3] = {{1, 2, 3}, {0, 1, 3}};
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f32 verticiesFlipNone[4][5] =
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{
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{0.0f, 0.0f, 0.0f, uvMin[0], uvMin[1]},
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{0.0f, size[1], 0.0f, uvMin[0], uvMax[1]},
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{size[0], size[1], 0.0f, uvMax[0], uvMax[1]},
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{size[0], 0.0f, 0.0f, uvMax[0], uvMin[1]}
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};
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f32 verticiesFlipHorizontal[4][5] =
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{
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{size[0], 0.0f, 0.0f, uvMin[0], uvMin[1]},
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{size[0], size[1], 0.0f, uvMin[0], uvMax[1]},
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{0.0f, size[1], 0.0f, uvMax[0], uvMax[1]},
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{0.0f, 0.0f, 0.0f, uvMax[0], uvMin[1]}
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};
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f32 verticiesFlipVertical[4][5] =
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{
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{size[0], size[1], 0.0f, uvMin[0], uvMin[1]},
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{size[0], 0.0f, 0.0f, uvMin[0], uvMax[1]},
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{0.0f, 0.0f, 0.0f, uvMax[0], uvMax[1]},
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{0.0f, size[1], 0.0f, uvMax[0], uvMin[1]}
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};
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f32 verticiesFlipHorizontalVertical[4][5] =
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{
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{0.0f, size[1], 0.0f, uvMin[0], uvMin[1]},
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{0.0f, 0.0f, 0.0f, uvMin[0], uvMax[1]},
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{size[0], 0.0f, 0.0f, uvMax[0], uvMax[1]},
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{size[0], size[1], 0.0f, uvMax[0], uvMin[1]}
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};
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switch (flip)
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{
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case FLIP_HORIZONTAL:
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memcpy(vertices, verticiesFlipHorizontal, sizeof(vertices));
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break;
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case FLIP_VERTICAL:
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memcpy(vertices, verticiesFlipVertical, sizeof(vertices));
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break;
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case FLIP_HORIZONTAL_VERTICAL:
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memcpy(vertices, verticiesFlipHorizontalVertical, sizeof(vertices));
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break;
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case FLIP_NONE:
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default:
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memcpy(vertices, verticiesFlipNone, sizeof(vertices));
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break;
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}
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vao_bind(&renderer->vao);
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vbo_bind(&renderer->vbo);
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vbo_buffer(&renderer->vbo, sizeof(vertices), vertices);
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vbo_bind(&renderer->ebo);
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vbo_buffer(&renderer->ebo, sizeof(indices), indices);
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vertex_attribute_set(0, 3, GL_FLOAT, 5 * sizeof(f32), 0);
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vertex_attribute_set(1, 2, GL_FLOAT, 5 * sizeof(f32), 3 * sizeof(f32));
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renderer_shader_use(renderer, shader);
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shader_uniform_mat4_set(shader, TEXTURE_QUAD_UNIFORM_PROJECTION, projection);
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shader_uniform_mat4_set(shader, TEXTURE_QUAD_UNIFORM_VIEW, view);
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shader_uniform_mat4_set(shader, TEXTURE_QUAD_UNIFORM_MODEL, model);
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shader_uniform_vec2_set(shader, TEXTURE_QUAD_UNIFORM_SIZE, size);
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shader_uniform_vec4_set(shader, TEXTURE_QUAD_UNIFORM_COLOR, color);
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shader_uniform_vec4_set(shader, TEXTURE_QUAD_UNIFORM_COLOR_COVER, colorCover);
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shader_uniform_texture_set(shader, TEXTURE_QUAD_UNIFORM_TEXTURE, texture, 0);
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glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
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vao_unbind();
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}
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