void BatchSpriteRenderer::render(F32 x, F32 y, F32 width, F32 height, F32 angleRads) {
F32 top = height/2;
F32 right = width/2;
F32 bottom = -height/2;
F32 left = -width/2;
F32 verts[] = {
left, top, 0, right, top, 0, right, bottom, 0, left, bottom, 0
};
F32 uvs[] = {
0, 0, 1, 0, 1, 1, 0, 1
};
if (context->gConfig->useShaders) {
ShaderProgram *shaderProgram = context->glResourceManager->getShaderProgram("quad");
Matrix4f myMvMatrix = context->renderContext->mvMatrix;
myMvMatrix.translate(x, y, 0);
myMvMatrix.rotate(angleRads * (180 / PI), 0, 0, -1.0f);
glVertexAttribPointer(shaderProgram->getVertexAttributeLoc("vPosition"), 3, GL_FLOAT, GL_FALSE, 0, verts);
glVertexAttribPointer(shaderProgram->getVertexAttributeLoc("uvMap"), 2, GL_FLOAT, GL_FALSE, 0, uvs);
glUniformMatrix4fv(shaderProgram->getUniformLoc("projection_matrix"), 1, GL_FALSE, (GLfloat*) context->renderContext->projMatrix.data);
glUniformMatrix4fv(shaderProgram->getUniformLoc("modelview_matrix"), 1, GL_FALSE, (GLfloat*) myMvMatrix.data);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
} else {
// GL1 rendering branch
Vector4f colorFilter = context->renderContext->colorFilter;
glColor4f(colorFilter.x,colorFilter.y,colorFilter.z,colorFilter.a);
glPushMatrix();
glTranslatef(x, y, 0);
glRotatef(angleRads * (180 / PI), 0, 0, 1.0f);
glVertexPointer(3, GL_FLOAT, 0, &verts);
glTexCoordPointer(2, GL_FLOAT, 0, &uvs);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glPopMatrix();
}
}
void BatchSpriteRenderer::startBatch() {
checkGLError("BatchSpriteRenderer Start");
glBindTexture(GL_TEXTURE_2D, textureId);
glFrontFace(GL_CW);
if (context->gConfig->useShaders) {
ShaderProgram *shaderProgram = context->glResourceManager->getShaderProgram("quad");
shaderProgram->bind();
glUniform1i(shaderProgram->getUniformLoc("tex"), 0);
Vector4f colorFilter = context->renderContext->colorFilter;
glUniform4f(shaderProgram->getUniformLoc("colorFilter"), colorFilter.x,colorFilter.y,colorFilter.z,colorFilter.a);
}
}
void BatchSpriteRenderer::render(F32 top, F32 right, F32 bottom, F32 left) {
F32 verts[] = {
left, top, 0, right, top, 0, right, bottom, 0, left, bottom, 0
};
F32 uvs[] = {
0, 0, 1, 0, 1, 1, 0, 1
};
if (context->gConfig->useShaders) {
ShaderProgram *shaderProgram = context->glResourceManager->getShaderProgram("quad");
glVertexAttribPointer(shaderProgram->getVertexAttributeLoc("vPosition"), 3, GL_FLOAT, GL_FALSE, 0, verts);
glVertexAttribPointer(shaderProgram->getVertexAttributeLoc("uvMap"), 2, GL_FLOAT, GL_FALSE, 0, uvs);
glUniformMatrix4fv(shaderProgram->getUniformLoc("projection_matrix"), 1, GL_FALSE, (GLfloat*) context->renderContext->projMatrix.data);
glUniformMatrix4fv(shaderProgram->getUniformLoc("modelview_matrix"), 1, GL_FALSE, (GLfloat*) context->renderContext->mvMatrix.data);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
} else {
glVertexPointer(3, GL_FLOAT, 0, &verts);
glTexCoordPointer(2, GL_FLOAT, 0, &uvs);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
}
}