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last bit of modif

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Lectem 2015-03-24 00:11:52 +01:00
parent 56556baaa7
commit 134f27f520
2 changed files with 25 additions and 14 deletions
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2
examples/graphics/hello_triangle/data/shader.vsh
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@ -26,7 +26,7 @@
dp4 outpos.z, projection[2], r0
dp4 outpos.w, projection[3], r0
; Set vertex color to white
; Set vertex color to white rgba => (1.0,1.0,1.0,1.0)
mov outclr, ones
end
.end

37
examples/graphics/hello_triangle/source/main.c
View File

@ -1,3 +1,14 @@
/**
* Hello Triangle example, made by Lectem
*
* Draws a white triangle using the 3DS GPU.
* This example should give you enough hints and links on how to use the GPU for basic non-textured rendering.
* Another version of this example will be made with colors.
*
* Thanks to smea, fincs, neobrain, xerpi and all those who helped me understand how the 3DS GPU works
*/
#include <3ds.h>
#include <stdio.h>
#include <stdlib.h>
@ -133,10 +144,10 @@ void gpuUIEndFrame()
GPUCMD_FlushAndRun(NULL);
gspWaitForP3D();//Wait for the gpu 3d processing to be done
//Copy the GPU output buffer to the screen framebuffer
//See http://3dbrew.org/wiki/GPU#Transfer_Engine for more details about the transfer engine
//See http://3dbrew.org/wiki/GPU#Transfer_Engine for more details about the transfer engine
GX_SetDisplayTransfer(NULL, gpuFBuffer, 0x019001E0, (u32*)gfxGetFramebuffer(GFX_TOP, GFX_LEFT, NULL, NULL), 0x019001E0, 0x01001000);
gspWaitForPPF();
//Clear the screen
GX_SetMemoryFill(NULL, gpuFBuffer, clearColor, &gpuFBuffer[0x2EE00],
0x201, gpuDBuffer, 0x00000000, &gpuDBuffer[0x2EE00], 0x201);
@ -152,10 +163,10 @@ void gpuUIEndFrame()
//Viewport (http://3dbrew.org/wiki/GPU_Commands#Command_0x0041)
GPU_SetViewport((u32 *)osConvertVirtToPhys((u32)gpuDBuffer),
(u32 *)osConvertVirtToPhys((u32)gpuFBuffer),
0, 0,
//Our screen is 400*240, but the GPU actually renders to 400*480 and then downscales it SetDisplayTransfer bit 24 is set
//This is the case here (See http://3dbrew.org/wiki/GPU#0x1EF00C10 for more details)
240*2, 400);
0, 0,
//Our screen is 400*240, but the GPU actually renders to 400*480 and then downscales it SetDisplayTransfer bit 24 is set
//This is the case here (See http://3dbrew.org/wiki/GPU#0x1EF00C10 for more details)
240*2, 400);
GPU_DepthMap(-1.0f, 0.0f); //Be careful, standard OpenGL clipping is [-1;1], but it is [-1;0] on the pica200
@ -183,11 +194,11 @@ void gpuUIEndFrame()
//Our data
static const vector_3f triangle_mesh[] =
{
{240.0f+60.0f, 120.0f, 0.5f},
{240.0f-60.0f, 120.0f+60.0f, 0.5f},
{240.0f-60.0f, 120.0f-60.0f, 0.5f}
};
{
{240.0f+60.0f, 120.0f, 0.5f},
{240.0f-60.0f, 120.0f+60.0f, 0.5f},
{240.0f-60.0f, 120.0f-60.0f, 0.5f}
};
static void* triangle_data = NULL;
@ -222,7 +233,7 @@ int main(int argc, char** argv)
(u32[]) {0x0}, // buffer offsets (placeholders)
(u64[]) {0x0}, // attribute permutations for each buffer (identity again)
(u8[]) {1} // number of attributes for each buffer
);
);
//Display the buffers data
GPU_DrawArray(GPU_TRIANGLES, sizeof(triangle_mesh) / sizeof(triangle_mesh[0]));
@ -237,7 +248,7 @@ int main(int argc, char** argv)
aptExit();
srvExit();
return 0;
return 0;
}