125 lines
3.0 KiB
C
125 lines
3.0 KiB
C
/**
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* Copyright (c) 2021 Dominic Masters
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*
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* This software is released under the MIT License.
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* https://opensource.org/licenses/MIT
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*/
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#include "renderlist.h"
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void renderListInit(renderlist_t *list,int32_t width, int32_t height) {
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frameBufferInit(&list->frame, width, height);
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quadInit(&list->quad, 0, 0,0,0,0, 1,1,1,1);
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list->passCount = 0;
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}
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renderpass_t * renderListGetPass(renderlist_t *list, uint8_t pass) {
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return list->passes + pass;
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}
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uint8_t renderPassAdd(renderlist_t *list, shader_t *shader) {
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uint8_t i;
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renderpass_t *pass;
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i = list->passCount++;
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pass = renderListGetPass(list, i);
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pass->shader = shader;
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frameBufferInit(&pass->frame,
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list->frame.texture.width, list->frame.texture.height
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);
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return i;
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}
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renderpass_t * renderListRenderPass(
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renderlist_t *list, engine_t *engine, uint8_t pass
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) {
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renderpass_t *renderPass;
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renderPass = renderListGetPass(list, pass);
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// Bind the shader.
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frameBufferUse(&renderPass->frame, true);
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shaderUse(renderPass->shader);
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return renderPass;
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}
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void renderListRender(
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renderlist_t *list, shader_t *shader, shaderuniform_t *uniforms
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) {
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camera_t camera;
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int32_t i;
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renderpass_t *pass;
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// Setup the camera
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cameraLookAt(&camera, 0,0,1, 0,0,0);
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cameraOrtho(&camera, 0,1, 0,1, 0.5f, 1.5f);
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// Bind the framebuffer
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frameBufferUse(&list->frame, true);
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// Set the shader
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shaderUse(shader);
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shaderUseCamera(shader, uniforms[0], uniforms[1], &camera);
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shaderUsePosition(shader, uniforms[2], 0,0,0, 0,0,0);
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// Render each pass.
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for(i = 0; i < list->passCount; i++) {
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pass = renderListGetPass(list, i);
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shaderUseTexture(shader, uniforms[3+i], &pass->frame.texture);
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primitiveDraw(&list->quad, 0, -1);
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}
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}
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void renderListAsBackbuffer(
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renderlist_t *list, engine_t *engine, shader_t *shader,
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shaderuniform_t *uniforms
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) {
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camera_t camera;
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// Reset to backbuffer
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renderResetFramebuffer(&engine->render);
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// Setup camera to look right at teh quad.
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cameraLookAt(&camera, 0,0,1, 0,0,0);
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cameraOrtho(&camera, 0,1, 0,1, 0.5f, 1.5f);
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// Set up the shader.
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shaderUse(shader);
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shaderUseCamera(shader, uniforms[0], uniforms[1], &camera);
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shaderUsePosition(shader, uniforms[2], 0,0,0, 0,0,0);
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shaderUseTexture(shader, uniforms[3], &list->frame.texture);
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// Render the quad to the back buffer.
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primitiveDraw(&list->quad, 0, -1);
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}
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void renderListResize(renderlist_t *list, int32_t width, int32_t height) {
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uint8_t i;
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if(
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width == list->frame.texture.width &&
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height == list->frame.texture.height
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) return;
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frameBufferDispose(&list->frame);
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frameBufferInit(&list->frame, width, height);
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for(i = 0; i < list->passCount; i++) {
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frameBufferDispose(&list->passes[i].frame);
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frameBufferInit(&list->passes[i].frame, width, height);
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}
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}
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void renderListDispose(renderlist_t *list) {
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uint8_t i;
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for(i = 0; i < list->passCount; i++) {
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frameBufferDispose(&list->passes[i].frame);
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}
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frameBufferDispose(&list->frame);
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primitiveDispose(&list->quad);
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} |