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decreased a number of vao creations

This commit is contained in:
gazer 2016-01-04 22:31:27 +03:00
parent 936838bf2d
commit 4d16c29506
2 changed files with 66 additions and 38 deletions
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1
src/dlangui/graphics/gldrawbuf.d
View File

@ -71,6 +71,7 @@ class GLDrawBuf : DrawBuf, GLConfigCallback {
_scene.reset();
}
_scene = new Scene(this);
glSupport.prepareShaders();
}
/// reserved for hardware-accelerated drawing - ends drawing batch

103
src/dlangui/graphics/glsupport.d
View File

@ -289,6 +289,27 @@ class SolidFillProgram : GLProgram {
return matrixLocation >= 0 && vertexLocation >= 0 && colAttrLocation >= 0;
}
VAO vao;
VBO vbo;
bool needToCreateVAO = true;
void createVAO(float[] vertices, float[] colors) {
if(vao)
destroy(vao);
vao = new VAO;
if(vbo)
destroy(vbo);
vbo = new VBO;
glVertexAttribPointer(vertexLocation, 3, GL_FLOAT, GL_FALSE, 0, cast(void*) 0);
glVertexAttribPointer(colAttrLocation, 4, GL_FLOAT, GL_FALSE, 0, cast(void*) (vertices.length * float.sizeof));
glEnableVertexAttribArray(vertexLocation);
glEnableVertexAttribArray(colAttrLocation);
needToCreateVAO = false;
}
void beforeExecute() {
glEnable(GL_BLEND);
checkgl!glDisable(GL_CULL_FACE);
@ -302,21 +323,15 @@ class SolidFillProgram : GLProgram {
return false;
beforeExecute();
VAO vao = new VAO();
if(needToCreateVAO)
createVAO(vertices, colors);
VBO vbo = new VBO();
vbo.bind();
vbo.fill([vertices, colors]);
glVertexAttribPointer(vertexLocation, 3, GL_FLOAT, GL_FALSE, 0, cast(void*) 0);
glVertexAttribPointer(colAttrLocation, 4, GL_FLOAT, GL_FALSE, 0, cast(void*) (vertices.length * vertices[0].sizeof));
glEnableVertexAttribArray(vertexLocation);
glEnableVertexAttribArray(colAttrLocation);
checkgl!glDrawArrays(GL_TRIANGLE_STRIP, 0, cast(int)vertices.length/3);
destroy(vbo);
destroy(vao);
vao.bind();
checkgl!glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
vao.unbind();
return true;
}
}
@ -327,21 +342,15 @@ class LineProgram : SolidFillProgram {
return false;
beforeExecute();
VAO vao = new VAO();
if(needToCreateVAO)
createVAO(vertices, colors);
VBO vbo = new VBO();
vbo.bind();
vbo.fill([vertices, colors]);
glVertexAttribPointer(vertexLocation, 3, GL_FLOAT, GL_FALSE, 0, cast(void*) 0);
glVertexAttribPointer(colAttrLocation, 4, GL_FLOAT, GL_FALSE, 0, cast(void*) (vertices.length * vertices[0].sizeof));
glEnableVertexAttribArray(vertexLocation);
glEnableVertexAttribArray(colAttrLocation);
checkgl!glDrawArrays(GL_LINES, 0, cast(int)vertices.length/3);
destroy(vbo);
destroy(vao);
vao.bind();
checkgl!glDrawArrays(GL_LINES, 0, 2);
vao.unbind();
return true;
}
}
@ -384,6 +393,26 @@ class TextureProgram : SolidFillProgram {
return res && texCoordLocation >= 0;
}
void createVAO(float[] vertices, float[] colors, float[] texcoords) {
if(vao)
destroy(vao);
vao = new VAO;
if(vbo)
destroy(vbo);
vbo = new VBO;
glVertexAttribPointer(vertexLocation, 3, GL_FLOAT, GL_FALSE, 0, cast(void*) 0);
glVertexAttribPointer(colAttrLocation, 4, GL_FLOAT, GL_FALSE, 0, cast(void*) (vertices.length * float.sizeof));
glVertexAttribPointer(texCoordLocation, 2, GL_FLOAT, GL_FALSE, 0, cast(void*) ((vertices.length + colors.length) * float.sizeof));
glEnableVertexAttribArray(vertexLocation);
glEnableVertexAttribArray(colAttrLocation);
glEnableVertexAttribArray(texCoordLocation);
needToCreateVAO = false;
}
bool execute(float[] vertices, float[] colors, float[] texcoords, Tex2D texture, bool linear) {
if(!check())
return false;
@ -392,23 +421,15 @@ class TextureProgram : SolidFillProgram {
texture.setup();
texture.setSamplerParams(linear);
VAO vao = new VAO();
if(needToCreateVAO)
createVAO(vertices, colors, texcoords);
VBO vbo = new VBO();
vbo.bind();
vbo.fill([vertices, colors, texcoords]);
glVertexAttribPointer(vertexLocation, 3, GL_FLOAT, GL_FALSE, 0, cast(void*) 0);
glVertexAttribPointer(colAttrLocation, 4, GL_FLOAT, GL_FALSE, 0, cast(void*) (vertices.length * vertices[0].sizeof));
glVertexAttribPointer(texCoordLocation, 2, GL_FLOAT, GL_FALSE, 0, cast(void*) (vertices.length * vertices[0].sizeof + colors.length * colors[0].sizeof));
glEnableVertexAttribArray(vertexLocation);
glEnableVertexAttribArray(colAttrLocation);
glEnableVertexAttribArray(texCoordLocation);
checkgl!glDrawArrays(GL_TRIANGLE_STRIP, 0, cast(int)vertices.length/3);
destroy(vbo);
destroy(vao);
vao.bind();
checkgl!glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
vao.unbind();
texture.unbind();
return true;
@ -578,6 +599,12 @@ class GLSupport {
return true;
}
void prepareShaders() {
_solidFillProgram.needToCreateVAO = true;
_lineProgram.needToCreateVAO = true;
_textureProgram.needToCreateVAO = true;
}
void setRotation(int x, int y, int rotationAngle) {
/*
this->rotationAngle = rotationAngle;